Morbidity trend and space-time clusters of COVID-19 occurrence in children and adolescents

Abstract Objective: To analyze the morbidity trend and space-time distribution clusters of confirmed COVID-19 cases in children and adolescents. Method: An ecological study of COVID-19 cases confirmed in the Information System from 2020 to 2022 in the age group from 0 to 19 years old, residents in Mato Grosso municipalities, Brazilian Midwest region. A trend analysis of the monthly morbidity rate of cases/100,000 inhabitants was used, following Prais-Winsten's regression. A space-time distribution of the Bayesian incidence rate per 100,000 inhabitants was performed, in addition to a space-time scan to identify high-risk clusters. Results: Of all 79,592 COVID-19 cases studied, 51.6% were in females and 44.21% in people aged 15-19 years old. The mean monthly rate was 265.87 cases per 100,000 inhabitants, with a stationary trend in the period analyzed (Monthly Percentage Variation [MPV]) = 12.15; CI95%[MPV]: -0.73;26.70). The morbidity rate due to COVID-19 was higher in the female gender (283.14/ 100,000 inhabitants) and in the age group from 15 to 19 years old (485.90/100,000 inhabitants). An increasing trend was observed with a greater monthly time variation of 14.42% (CI95%[MPV]: 1.28;29.28)] among those aged from 10 to 14 years old. The primary cluster, which was also the one with the highest Relative Risk (RR = 5,16, p-value = 0.001), included 19 municipalities located in the North health macro-region. Conclusion: The findings indicated a monthly stationary trend in the study population, an increase in the age group from 10 to 14 years old, and areas at a higher risk for the disease in the North health macro-region of the state.

Morbidity trend and space-time clusters of COVID-19 occurrence in children and adolescents.

OBJECTIVE: To analyze the morbidity trend and space-time distribution clusters of confirmed COVID-19 cases in children and adolescents. METHOD: An ecological study of COVID-19 cases confirmed in the Information System from 2020 to 2022 in the age group from 0 to 19 years old, residents in Mato Grosso municipalities, Brazilian Midwest region. A trend analysis of the monthly morbidity rate of cases/100,000 inhabitants was used, following Prais-Winsten's regression. A space-time distribution of the Bayesian incidence rate per 100,000 inhabitants was performed, in addition to a space-time scan to identify high-risk clusters. RESULTS: Of all 79,592 COVID-19 cases studied, 51.6% were in females and 44.21% in people aged 15-19 years old. The mean monthly rate was 265.87 cases per 100,000 inhabitants, with a stationary trend in the period analyzed (Monthly Percentage Variation [MPV]) = 12.15; CI95%[MPV]: -0.73;26.70). The morbidity rate due to COVID-19 was higher in the female gender (283.14/100,000 inhabitants) and in the age group from 15 to 19 years old (485.90/100,000 inhabitants). An increasing trend was observed with a greater monthly time variation of 14.42% (CI95%[MPV]: 1.28;29.28)] among those aged from 10 to 14 years old. The primary cluster, which was also the one with the highest Relative Risk (RR = 5,16, p-value = 0.001), included 19 municipalities located in the North health macro-region. CONCLUSION: The findings indicated a monthly stationary trend in the study population, an increase in the age group from 10 to 14 years old, and areas at a higher risk for the disease in the North health macro-region of the state.

Factors influencing COVID-19 mortality among cancer patients: A Brazilian multi-institutional study.

PURPOSE: This study aimed to describe the demographic and clinical characteristics of cancer patients with COVID-19, exploring factors associated with adverse outcomes. PATIENTS AND METHODS: This retrospective cohort study methodically extracted and curated data from electronic medical records (EMRs) of numerous healthcare institutions on cancer patients diagnosed with a confirmed SARS-CoV-2 infection between May 2020 and August 2021, to identify risk factors linked to extended hospitalization and mortality. The retrieved information encompassed the patients' demographic and clinical characteristics, including the incidence of prolonged hospitalization, acute complications, and COVID-19-related mortality. RESULTS: A total of 1446 cancer patients with COVID-19 were identified (mean [Standard deviation] age, 59.2 [14.3] years). Most patients were female (913 [63.1%]), non-white (646 [44.7%]), with non-metastatic (818 [56.6%]) solid tumors (1318 [91.1%]), and undergoing chemotherapy (647 [44.7%]). The rate of extended hospitalization due to COVID-19 was 46% (n = 665), which was significantly impacted by age (p = 0.012), sex (p = 0.003), race and ethnicity (p = 0.049), the presence of two or more comorbidities (p = 0.006), hematologic malignancies (p = 0.013), metastatic disease (p = 0.002), and a performance status ≥ 2 (p = 0.001). The COVID-19-related mortality rate was 18.9% (n = 273), and metastatic disease (<0.001), performance status ≥2 (<0.001), extended hospitalization (p = 0.028), renal failure (p = 0.029), respiratory failure (p < 0.001), sepsis (p = 0.004), and shock (p = 0.040) significantly and negatively influenced survival. CONCLUSION: The rate of extended hospitalization and COVID-19-specific death in cancer patients was notably high and could be influenced by comorbidities, cancer treatment status, and clinical fragility. These observations may aid in developing risk counseling strategies regarding COVID-19 in individuals diagnosed with cancer.

Impact of students assistance policies on quality of life and mental health.

Introduction: Student assistance policies in higher education, in their various modalities, seek to reduce the dropout of a new profile of students, non-traditional, with socioeconomic weaknesses, promoting quality of life (QoL) and mental health during the university journey. In this context, the Student Social Support Center (C.A.S.A) promotes assistance to students who need personal and/or economic support. Objectives: To evaluate the QoL and the presence of minor mental disorders (MMD) in students from the 1st to the 4th year of medicine at a public college in Brazil, comparing C.A.S.A beneficiaries and non-beneficiaries. Materials and methods: Cross-sectional study with 283 students. SRQ-20 and WHOQOL-BREF questionnaires were used, in addition to a questionnaire addressing sociodemographic data. Results: The general average of QoL was regular in the four evaluated domains (physical, psychological, social relationships, environment) and 55.5% of the students have evidence of MMD, in which the QoL scores are lower in all domains. The environment domain, which discusses socioeconomic conditions, has the worst score among C.A.S.A beneficiaries and the best among C.A.S.A non-beneficiaries. Discussion: The data corroborate the fragile situation of mental health and QoL of medical students. The student assistance modality of the analyzed program possibly presents vulnerabilities in its performance since the environment domain, the one with the lowest score among the program beneficiaries, precisely encompasses financial resources, access to goods and leisure and the individual's physical environment.

Bacterial Detection, Deformation, and Torque Loss on Dental Implants with Different Tapered Connections Compared with External Hexagon Connection after Thermomechanical Cycling.

The relationship between bacterial infiltration and internal conical Implant-Abutment Interfaces (IAIs) with different conicities still requires investigations that can offer valuable information in the clinical understanding of peri-implant health. The present study aimed to verify the bacterial infiltration of two internal conical connections with an angulation of 11.5° and 16° with the external hexagonal connection as a comparative after thermomechanical cycling using saliva as a contaminant. Test (n = 10) and control (n = 3) groups were set up. Evaluations were made on torque loss, Scanning Electron Microscopy (SEM), and Micro Computerized Tomography (MicroCT) after performing 2 × 106 mechanical cycles (120 N) and 600 thermal cycles (5°-55° C) with 2 mm lateral displacement. The contents of the IAI were collected for microbiological analysis. There was a difference (p < 0.05) in torque loss of the groups tested; groups from the 16° IAI obtained a lower percentage of torque loss. All groups presented contamination and the analysis of the results shows that the microbiological profile of the IAI differs qualitatively from the profile found in the saliva used for contamination. The mechanical loading affects the microbiological profile found in the IAIs (p < 0.05). In conclusion, the IAI environment may favor a microbiological profile different from that of saliva and the thermocycling condition may alter the microbial profile found in the IAI.

In situ evaluation of microbial profile formed on Ti-6Al-4V additive manufacturing disks: 16S rRNA sequencing.

STATEMENT OF PROBLEM: Dental implants obtained by additive manufacturing may present changes in the microbiome formed. However, studies profiling the microbial communities formed on Ti-6Al-4V are lacking. PURPOSE: The purpose of this in situ study was to characterize the profile of the microbial communities formed on Ti-6Al-4V disks produced by additive manufacturing and machining. MATERIAL AND METHODS: Titanium disks produced by additive manufacturing (AMD) and machining (UD) were housed in the buccal region of removable intraoral devices. These devices containing both disks were used by eight participants for 96 hours. After every 24 hours of intraoral exposure, the biofilm that had formed on the disks was collected. The 16S rRNA genes from each specimen were amplified and sequenced with the Miseq Illumina instrument and analyzed. Total microbial quantification was evaluated by analysis of variance-type statistics using the nparLD package. The Wilcoxon test was used to evaluate alpha diversity (α=.05). RESULTS: A difference was found in the microbial communities formed on additively manufactured and machined disks, with a reduction in operational taxonomic units (OTUs) for the AMD group compared with the UD group. Firmicutes and Proteobacteria were the most abundant phyla. Of the 1256 genera sequenced, Streptococcus predominated on both disks. CONCLUSIONS: The microbiome of the biofilm formed on the Ti-6Al-4V disks was significantly influenced by the fabrication method. The AMD disks showed lower total microbial counts than the UD disks.

Relationship between self-reported pain, pain threshold, pain catastrophization and quality of life in patients with TMD.

Background: The aim of this study was to verify if there is a relationship between self-reported pain, PPT (pressure pain threshold) of the masseter, temporal and sternocleidomastoid muscles, pain catastrophizing and quality of life in patients with TMD (temporomandibular disorder) of muscular origin. Material and Methods: Ninety-seven patients with muscular TMD (TMD group) and 97 asymptomatic (control group) were included in the study. The evaluation methods used were: 1) Self-reported pain was assessed using the Visual Analogue Scale (VAS) for questions 7, 8 and 9 of the RDC/TMD Axis I questionnaire; 2) The PPT assessment was performed using a digital algometer on the masseter, temporal, and sternocleidomastoid muscles (both sides); 3) Pain catastrophizing was assessed using the PCS (Pain Catastrophizing Scale); and 4) Oral health-related quality of life was assessed using the OHIP-14 (Oral Healthy Impact Profile-14). Data were submitted to Spearman correlation and logistic regression (p<0.05). Results: There were significant positive correlations between self-reported pain (VAS-Q7, VAS-Q8 and VAS-Q9), pain catastrophizing (PCS-Helplessness, PCS-Magnification, PCS-Rumination and PCS-Total) and quality of life (OHIP-14) (p<0.05). There was a significant negative correlation of self-reported pain (VAS-Q8) with PPT of the temporal (left) and sternocleidomastoid (both sides) (p<0.05). The rumination and magnification domains increased the chance of high self-reported pain in all situations (VAS-Q7, VAS-Q8 and VAS-Q9) (p<0.05). The helplessness domain only increased the chance of high self-reported pain for VAS-Q8 (p<0.05). The presence of TMD of muscular origin, high self-reported pain (VAS-Q7) or pain catastrophizing increased the chance of a low quality of life in relation to the control group (p<0.05). In addition, the reduction in sternocleidomastoid PPT increased the chance of poor quality of life (p<0.05). Key words:Myofascial pain syndromes, pain catastrophizing, myalgia, quality of life, surveys and questionnaires, temporomandibular joint disorders.

Understanding ayahuasca effects in major depressive disorder treatment through in vitro metabolomics and bioinformatics.

Emerging insights from metabolomic-based studies of major depression disorder (MDD) are mainly related to biochemical processes such as energy or oxidative stress, in addition to neurotransmission linked to specific metabolite intermediates. Hub metabolites represent nodes in the biochemical network playing a critical role in integrating the information flow in cells between metabolism and signaling pathways. Limited technical-scientific studies have been conducted to understand the effects of ayahuasca (Aya) administration in the metabolism considering MDD molecular context. Therefore, this work aims to investigate an in vitro primary astrocyte model by untargeted metabolomics of two cellular subfractions: secretome and intracellular content after pre-defined Aya treatments, based on DMT concentration. Mass spectrometry (MS)-based metabolomics data revealed significant hub metabolites, which were used to predict biochemical pathway alterations. Branched-chain amino acid (BCAA) metabolism, and vitamin B6 and B3 metabolism were associated to Aya treatment, as "housekeeping" pathways. Dopamine synthesis was overrepresented in the network results when considering the lowest tested DMT concentration (1 µmol L-1). Building reaction networks containing significant and differential metabolites, such as nicotinamide, L-DOPA, and L-leucine, is a useful approach to guide on dose decision and pathway selection in further analytical and molecular studies.

Mast cell-T cell axis alters development of colitis-dependent and colitis-independent colorectal tumours: potential for therapeutically targeting via mast cell inhibition.

BACKGROUND: Colorectal cancer (CRC) has a high mortality rate and can develop in either colitis-dependent (colitis-associated (CA)-CRC) or colitis-independent (sporadic (s)CRC) manner. There has been a significant debate about whether mast cells (MCs) promote or inhibit the development of CRC. Herein we investigated MC activity throughout the multistepped development of CRC in both human patients and animal models. METHODS: We analyzed human patient matched samples of healthy colon vs CRC tissue alongside conducting a The Cancer Genome Atlas-based immunogenomic analysis and multiple experiments employing genetically engineered mouse (GEM) models. RESULTS: Analyzing human CRC samples revealed that MCs can be active or inactive in this disease. An activated MC population decreased the number of tumor-residing CD8 T cells. In mice, MC deficiency decreased the development of CA-CRC lesions, while it increased the density of tumor-based CD8 infiltration. Furthermore, co-culture experiments revealed that tumor-primed MCs promote apoptosis in CRC cells. In MC-deficient mice, we found that MCs inhibited the development of sCRC lesions. Further exploration of this with several GEM models confirmed that different immune responses alter and are altered by MC activity, which directly alters colon tumorigenesis. Since rescuing MC activity with bone marrow transplantation in MC-deficient mice or pharmacologically inhibiting MC effects impacts the development of sCRC lesions, we explored its therapeutic potential against CRC. MC activity promoted CRC cell engraftment by inhibiting CD8+ cell infiltration in tumors, pharmacologically blocking it inhibits the ability of allograft tumors to develop. This therapeutic strategy potentiated the cytotoxic activity of fluorouracil chemotherapy. CONCLUSION: Therefore, we suggest that MCs have a dual role throughout CRC development and are potential druggable targets against this disease.

Conexões e Alianças do Movimento LGBT em Pernambuco na Década de 1980: memórias do GATHO / Connections and Alliances of the LGBT Movement in Pernambuco in the 1980's: the GATHO Memories / Conexiones y Alianzas del Movimiento LGBT en Pernambuco en los 1980: memorias del GATHO

Este artigo tem como objetivo contribuir para visibilização de narrativas históricas sobre o movimento LGBT pernambucano na década de 1980 (à época definido como movimento homossexual), a partir da análise de produções jornalísticas - digitalizadas e disponibilizadas em hemerotecas on-line, originalmente publicadas na década de 1980 - sobre a atuação do Grupo de Atuação Homossexual (GATHO). As 30 publicações foram organizadas em um quadro analítico, resultando em três linhas de análise: (i) articulações da ação política do Grupo com outros movimentos sociais; (ii) articulações e interlocuções do grupo na arena política; (iii) convergências e divergências entre as pautas daquele movimento na década de 1980 e as atuais pautas do movimento LGBT. Conclui-se que o GATHO se articulou com outros grupos de destaque no Brasil, a fim de fortalecer o movimento de resistência ao regime civil-militar que impunha opressão sobre as diversidades sexuais, além da interlocução frequente com a esquerda partidária. Foram mapeadas ainda conexões com outros grupos com pautas mais aliadas na construção de agendas comuns de reivindicação. Em linhas gerais, embora tenha havido mudanças na estética e dinâmica de constituição do movimento, parece que o debate se manteve menos na afirmação identitária e mais no enfrentamento a discriminações.

This paper aims to contribute to the visibility of historical narratives about the Pernambuco LGBT movement in the 1980s (at the time defined as homosexual movement), based on the analysis of journalistic productions - digitized and made available in online libraries, originally published in the 1980s - about the work of the Grupo de Atuação Homossexual (GATHO). The 30 publications were organized in an analytical framework, resulting in three lines of analysis: (i) articulations of the Group's political action with other social movements; (ii) articulations and interlocutions of the group in the political arena; (iii) convergences and divergences between the agendas of that movement in the 1980s and the current agendas of the LGBT Movement. We conclude that GATHO articulated with other prominent groups in Brazil, in order to strengthen the resistance movement against the civil-military regime that imposed oppression on sexual diversities, as well as the frequent interlocution with the partisan left. Connections with other groups with more allied agendas were also mapped in the construction of common agendas for demands. In general terms, although there have been changes in the aesthetics and dynamics of the constitution of the movement, it seems that the debate has remained less on identity affirmation and more on confronting discrimination.

Este artículo pretende contribuir a la visibilidad de narrativas históricas sobre el movimiento LGBT del Nordeste de Brasil en los 1980, a través del análisis de producciones periodísticas - digitalizadas y disponibles en bibliotecas online, publicadas originalmente en la década de 1980 - sobre el trabajo del Grupo de Atuação Homossexual (GATHO). Las publicaciones (30) se organizaron en un marco analítico, dando lugar a tres líneas de análisis: (i) articulaciones de la acción política del Grupo con otros movimientos sociales; (ii) articulaciones e interlocuciones del grupo en el ámbito político; (iii) convergencias y divergencias entre las agendas de ese movimiento en los años 80 y las actuales del Movimiento LGBT. Concluimos que el GATHO se articuló con otros grupos destacados de Brasil, para fortalecer el movimiento de resistencia contra el régimen cívico-militar que imponía la opresión a las diversidades sexuales, así como la frecuente interlocución con la izquierda partidaria. En términos generales, aunque ha habido cambios en la estética y la dinámica de la constitución del movimiento, parece que el debate se ha mantenido menos en la afirmación de la identidad y más en la confrontación de la discriminación.

Metabolomics: A Powerful Tool to Understand the Schizophrenia Biology.

ABSVTRACT: Schizophrenia, as any other psychiatric disorder, is a multifactorial and complex illness whose etiology is not completely established. Therefore, studies involving strategies that are able to describe the molecular alterations caused by the disease and, consequently, indicate the altered metabolic pathways are of increasing interest. Metabolomics is a very suitable approach that can be applied for this task, since it consists of the evaluation of the set of metabolites contained in a biological system undergoing a biological process, such as a disease or treatment. In metabolomics, state-of-the-art analytical techniques (mass spectrometry and nuclear magnetic resonance) are employed to identify and quantify the metabolites present in the studied biological samples, and chemometric and bioinformatic tools are applied to determine the specific metabolites and metabolic pathways that are relevant to the biological process under investigation. The aim of this chapter is to describe the basic principles of metabolomics, how this strategy can improve the understanding of the schizophrenia biology, and the findings obtained so far.

Factors associated with suicidal ideation during the COVID-19 pandemic in a population in the Brazilian Legal Amazon / Fatores associados a ideação suicida durante a pandemia da COVID-19 em população da Amazônia Legal Brasileira

Abstract This article aims to analyze the factors associated with suicidal ideation in the COVID-19 pandemic. A cross-sectional home-based survey, with three-stage cluster sampling, was conducted with 4,203 adults from ten municipalities in the Mato Grosso, Brazil. The data collection was carried households to assessment of sociodemographic characteristics, substance use and behavior in the pandemic. The Level 1 Symptom Cross Scale was used to identify suicidal ideation and aspects of mental health (somatic symptoms, sleep disturbances, dissociation, depression, anger, mania, anxiety, thoughts, substance use and memory). Chemiluminescence was used to detect IgG anti-SARS-CoV-2 antibodies. The prevalence of suicidal ideation was 19.2%, and the associated with increased consumption of alcohol (RP=1.16), smoking (RP=1.30), COVID-19 symptoms (RP=1.03), having one's life affected (RP=1.04), mental illness (RP=1.09) somatic symptoms (RP=1.15), sleep disturbance (RP=1.30), dissociation (RP=1.24), depression (RP=1.24), anger (RP=1.11), anxiety (RP=1.26), substance use (RP=1.19), drug prescription use (RP=1.18) and memory (RP=1.87). Highlights the high prevalence of suicidal ideation related to COVID-19 symptoms, changes in behavior post-pandemic and mental health factors.

Resumo O objetivo deste artigo é analisar fatores associados a ideação suicida durante a pandemia da COVID-19. Inquérito de base populacional conduzido com 4.203 adultos de dez municípios mato-grossenses, Brasil. A coleta de dados foi realizada no domicílio, com avaliação de características sociodemográficas, uso de substâncias e comportamentos durante a pandemia. A Escala Transversal de Sintomas de Nível 1 do DSM-5 foi utilizada na identificação dos aspectos da saúde mental (sintomas somáticos, distúrbios do sono, dissociação, depressão, raiva, mania, ansiedade, pensamentos, uso de substâncias e memória) e utilizou-se quimioluminescência para detecção de anticorpos IgG anti-SARS-CoV-2. A prevalência de ideação suicida foi de 19,2%, e associou-se ao aumento do consumo de álcool (RP=1,16) e tabagismo (RP=1,30), sintomas de COVID-19 (RP=1,03), ter a vida muito afetada (RP=1,04), doença mental (RP=1,09), sintomas somáticos (RP=1,15), distúrbio do sono (RP=1,30), dissociação (RP=1,24), depressão (RP=1,24), raiva (RP=1,11), ansiedade (RP=1,26), uso de substâncias (RP=1,19), uso de medicamentos (RP=1,18) e memória (RP=1,87). Destacou-se a alta prevalência de ideação suicida e sua associação à sintomas de COVID-19, mudanças de comportamento pós-pandemia e fatores de saúde mental.

Factors associated with suicidal ideation during the COVID-19 pandemic in a population in the Brazilian Legal Amazon.

This article aims to analyze the factors associated with suicidal ideation in the COVID-19 pandemic. A cross-sectional home-based survey, with three-stage cluster sampling, was conducted with 4,203 adults from ten municipalities in the Mato Grosso, Brazil. The data collection was carried households to assessment of sociodemographic characteristics, substance use and behavior in the pandemic. The Level 1 Symptom Cross Scale was used to identify suicidal ideation and aspects of mental health (somatic symptoms, sleep disturbances, dissociation, depression, anger, mania, anxiety, thoughts, substance use and memory). Chemiluminescence was used to detect IgG anti-SARS-CoV-2 antibodies. The prevalence of suicidal ideation was 19.2%, and the associated with increased consumption of alcohol (RP=1.16), smoking (RP=1.30), COVID-19 symptoms (RP=1.03), having one's life affected (RP=1.04), mental illness (RP=1.09) somatic symptoms (RP=1.15), sleep disturbance (RP=1.30), dissociation (RP=1.24), depression (RP=1.24), anger (RP=1.11), anxiety (RP=1.26), substance use (RP=1.19), drug prescription use (RP=1.18) and memory (RP=1.87). Highlights the high prevalence of suicidal ideation related to COVID-19 symptoms, changes in behavior post-pandemic and mental health factors.

Social school contacts of multibacillary leprosy cases in children living in the hyperendemic region of the Midwest of Brazil

Abstract Objective: To analyze the prevalence of Mycobacterium leprae detection and the associated factors among social contacts in the school environment of multibacillary cases living in a hyperendemic municipality of the state of Mato Grosso. Methods: Cross-sectional study with 236 social contacts of multibacillary leprosy from public schools and residents in Cuiabá (Mato Grosso) in 2018. The sources of information were interviews and nasal swab tests for molecular analysis by polymerase chain reaction - PCR. For the prevalence ratio estimates, crude and adjusted analyses were performed using robust Poisson regression and their respective confidence intervals (95% CI). The ArcGIS 9.1 software was used for the geographic distribution analyses. Results: The prevalence of detection of M. leprae in social contacts was 14%. A total of 63.6% of the schools surveyed had 5.1% to 50% of the social contacts of leprosy with positive PCR. The analysis of the geographic distribution in the neighborhoods showed a high prevalence of infection, being higher than 50% in some localities. The highest proportion of positive results occurred in the northern region of the city and from a precarious socioeconomic class. Conclusion: The results showed a high prevalence of detection of M. leprae among social contacts in areas with poor socioeconomic conditions. In these regions, there is a greater risk of

[Prevalence of SARS-CoV-2 antibodies in the State of Mato Grosso, Brazil: a population-based survey]. / Prevalência de anticorpos contra SARS-CoV-2 em Mato Grosso, Brasil: pesquisa de base populacional.

Seroprevalence data provide relevant information on the development and progression of the COVID-19 pandemic. The study aimed to estimate the prevalence of SARS-CoV-2 antibodies in Mato Grosso State, Brazil, and its distribution according to sociodemographic and economic characteristics. This population-based serological survey was conducted in September-October 2020 in individuals 18 years or older in ten municipalities (counties) in the state of Mato Grosso. Interviews and collection of biological samples were conducted in the households, and determination of IgG antibodies to SARS-CoV-2 was performed with chemiluminescence. A total of 4,306 individuals were evaluated, and COVID-19 prevalence was estimated at 12.5% (95%CI: 10.5; 14.7), ranging from 7.4% to 24.3% between municipalities. No significant differences were found in prevalence of infection according to race/color, schooling, or family income, but lower prevalence was seen in individuals with a pensioner living in the same household, who did not receive emergency financial aid, and whose family income had not decreased after social distancing measures during the epidemic. Estimated prevalence of SARS-CoV-2 antibodies in this population-based survey is essential to measure the magnitude of the disease and will back measures to confront and control the pandemic.

Dados de soroprevalência oferecem informações relevantes relacionadas ao desenvolvimento e progressão de pandemia da COVID-19. Estimar a prevalência de anticorpos anti-SARS-CoV-2 em Mato Grosso, Brasil e sua distribuição segundo características sociodemográficas e econômicas. Inquérito soroepidemiológico de base populacional conduzido entre setembro e outubro de 2020, com indivíduos de 18 anos ou mais de idade, em dez municípios do Estado de Mato Grosso. As entrevistas e coleta de material biológico foram realizadas em domicílio, e a determinação de anticorpos IgG contra o SARS-CoV-2 foi feita por meio da quimioluminescência. Foram 4.306 indivíduos avaliados, e a prevalência de COVID-19 foi estimada em 12,5% (IC95%: 10,5; 14,7), variando de 7,4% a 24,3% entre os municípios. Não foram verificadas diferenças na prevalência da infecção segundo raça/cor da pele, escolaridade ou renda familiar, entretanto verificou-se menor prevalência entre indivíduos que residiam com algum morador que recebia aposentadoria, que não receberam auxílio financeiro emergencial e que a renda familiar não diminuiu após as medidas de distanciamento social para enfrentamento da epidemia. A prevalência de anticorpos contra SARS-CoV-2 estimada nesta pesquisa de base populacional é essencial para conhecer a magnitude da doença no estado e subsidiará ações de combate e controle da pandemia.

Los datos de seroprevalencia proporcionan información relevante relacionada con el desarrollo y la progresión de la pandemia del COVID-19. El objetivo fue estimar la prevalencia de anticuerpos anti-SARS-CoV-2 en Mato Grosso, Brasil, y su distribución según las características sociodemográficas y económicas. Encuesta seroepidemiológica de base poblacional, realizada entre septiembre y octubre de 2020 con individuos de los 18 años o más en diez municipios del estado de Mato Grosso. Las entrevistas y la recolección de material biológico se realizaron en el domicilio de los participantes, y para la determinación de anticuerpos IgG contra el SARS-CoV-2 se utilizó la quimioluminiscencia. Se evaluaron a 4.306 individuos, y la prevalencia del COVID-19 se estimó en un 12,5% (IC95%: 10,5; 14,7), que van del 7,4% al 24,3% entre los municipios. No se encontraron diferencias en la prevalencia de infección según la raza/color de la piel, la educación o los ingresos familiares; sin embargo, se encontró una menor prevalencia entre los individuos que vivían con un residente que recibía una pensión, que no recibía ayuda económica de emergencia y que los ingresos familiares no disminuyeron tras las medidas de distanciamiento social para hacer frente a la pandemia. La prevalencia de anticuerpos contra el SARS-CoV-2 estimada en esta investigación de base poblacional es imprescindible para conocer la magnitud de la enfermedad en el estado y subvencionar las acciones de enfrentamiento y control de la pandemia.

Spatio-temporal analysis of leprosy risks in a municipality in the state of Mato Grosso-Brazilian Amazon: results from the leprosy post-exposure prophylaxis program in Brazil.

BACKGROUND: Leprosy post-exposure prophylaxis (LPEP) with single dose rifampicin (SDR) can be integrated into different leprosy control program set-ups once contact tracing has been established. We analyzed the spatio-temporal changes in the distribution of index cases (IC) and co-prevalent cases among contacts of leprosy patients (CP) over the course of the LPEP program in one of the four study areas in Brazil, namely the municipality of Alta Floresta, state of Mato Grosso, in the Brazilian Amazon basin. METHODS: Leprosy cases were mapped, and socioeconomic indicators were evaluated to explain the leprosy distribution of all leprosy cases diagnosed in the period 2016-2018. Data were obtained on new leprosy cases [Notifiable diseases information system (Sinan)], contacts traced by the LPEP program, and socioeconomic variables [Brazilian Institute of Geography and Statistics (IBGE)]. Kernel, SCAN, factor analysis and spatial regression were applied to analyze changes. RESULTS: Overall, the new case detection rate (NCDR) was 20/10 000 inhabitants or 304 new cases, of which 55 were CP cases among the 2076 examined contacts. Changes over time were observed in the geographic distribution of cases. The highest concentration of cases was observed in the northeast of the study area, including one significant cluster (Relative risk = 2.24; population 27 427, P-value < 0.001) in an area characterized by different indicators associated with poverty as identified through spatial regression (Coefficient 3.34, P-value = 0.01). CONCLUSIONS: The disease distribution was partly explained by poverty indicators. LPEP influences the spatial dynamic of the disease and results highlighted the relevance of systematic contact surveillance for leprosy elimination.

Non-surgical periodontal debridement affects subgingival bacterial diversity in patients with HIV-1 and periodontitis.

BACKGROUND: Following human immunodeficiency virus-1 (HIV-1) infection and antiretroviral therapy, the development of periodontal disease was shown to be favored. However, the influence of HIV-1 infection on the periodontal microbiota after non-surgical periodontal debridement (NSPD) needs a broad comprehension. This work aimed to compare the subgingival microbiological content of patients infected with HIV-1 and controls (non-infected) with periodontitis undergoing NSPD. METHODS: The bacterial profile of subgingival biofilm samples of patients with HIV-1 (n = 18) and controls (n = 14) with periodontitis was assessed using 16S rRNA gene sequencing. The samples were collected at baseline, 30, and 90 days after NSPD. The taxonomic analysis of gingival microbiota was performed using a ribosomal RNA database. The microbiota content was evaluated in the light of CD4 cell count and viral load. RESULTS: Both HIV and control groups showed similar stages and grades of periodontitis. At baseline, the HIV group showed higher alpha diversity for both healthy and periodontal sites. Streptococcus, Fusobacterium, Veillonella and Prevotella were the predominant bacterial genera. A low abundance of periodontopathogenic bacteria was observed, and the NSPD induced shifts in the subgingival biofilm of patients with HIV-1, leading to a microbiota similar to that of controls. CONCLUSIONS: Different subgingival microbiota profiles were identified-a less diverse microbiota was found in patients infected with HIV-1, in contrast to a more diverse microbiota in controls. NSPD caused changes in the microbiota of both groups, with a greater impact on the HIV group, leading to a decrease in alpha diversity, and produced a positive impact on the serological immune markers in patients infected with HIV-1. Control of periodontitis should be included as part of an oral primary care, providing the oral health benefits and better control of HIV-1 infection.

Social school contacts of multibacillary leprosy cases in children living in the hyperendemic region of the Midwest of Brazil.

OBJECTIVE: To analyze the prevalence of Mycobacterium leprae detection and the associated factors among social contacts in the school environment of multibacillary cases living in a hyperendemic municipality of the state of Mato Grosso. METHODS: Cross-sectional study with 236 social contacts of multibacillary leprosy from public schools and residents in Cuiabá (Mato Grosso) in 2018. The sources of information were interviews and nasal swab tests for molecular analysis by polymerase chain reaction - PCR. For the prevalence ratio estimates, crude and adjusted analyses were performed using robust Poisson regression and their respective confidence intervals (95% CI). The ArcGIS 9.1 software was used for the geographic distribution analyses. RESULTS: The prevalence of detection of M. leprae in social contacts was 14%. A total of 63.6% of the schools surveyed had 5.1% to 50% of the social contacts of leprosy with positive PCR. The analysis of the geographic distribution in the neighborhoods showed a high prevalence of infection, being higher than 50% in some localities. The highest proportion of positive results occurred in the northern region of the city and from a precarious socioeconomic class. CONCLUSION: The results showed a high prevalence of detection of M. leprae among social contacts in areas with poor socioeconomic conditions. In these regions, there is a greater risk of infection and of getting sick.

Prevalência de anticorpos contra SARS-CoV-2 em Mato Grosso, Brasil: pesquisa de base populacional / Prevalence of SARS-CoV-2 antibodies in the State of Mato Grosso, Brazil: a population-based survey / Prevalencia de anticuerpos contra el SARS-CoV-2 en Mato Grosso, Brasil: encuesta de base poblacional

Dados de soroprevalência oferecem informações relevantes relacionadas ao desenvolvimento e progressão de pandemia da COVID-19. Estimar a prevalência de anticorpos anti-SARS-CoV-2 em Mato Grosso, Brasil e sua distribuição segundo características sociodemográficas e econômicas. Inquérito soroepidemiológico de base populacional conduzido entre setembro e outubro de 2020, com indivíduos de 18 anos ou mais de idade, em dez municípios do Estado de Mato Grosso. As entrevistas e coleta de material biológico foram realizadas em domicílio, e a determinação de anticorpos IgG contra o SARS-CoV-2 foi feita por meio da quimioluminescência. Foram 4.306 indivíduos avaliados, e a prevalência de COVID-19 foi estimada em 12,5% (IC95%: 10,5; 14,7), variando de 7,4% a 24,3% entre os municípios. Não foram verificadas diferenças na prevalência da infecção segundo raça/cor da pele, escolaridade ou renda familiar, entretanto verificou-se menor prevalência entre indivíduos que residiam com algum morador que recebia aposentadoria, que não receberam auxílio financeiro emergencial e que a renda familiar não diminuiu após as medidas de distanciamento social para enfrentamento da epidemia. A prevalência de anticorpos contra SARS-CoV-2 estimada nesta pesquisa de base populacional é essencial para conhecer a magnitude da doença no estado e subsidiará ações de combate e controle da pandemia.

Seroprevalence data provide relevant information on the development and progression of the COVID-19 pandemic. The study aimed to estimate the prevalence of SARS-CoV-2 antibodies in Mato Grosso State, Brazil, and its distribution according to sociodemographic and economic characteristics. This population-based serological survey was conducted in September-October 2020 in individuals 18 years or older in ten municipalities (counties) in the state of Mato Grosso. Interviews and collection of biological samples were conducted in the households, and determination of IgG antibodies to SARS-CoV-2 was performed with chemiluminescence. A total of 4,306 individuals were evaluated, and COVID-19 prevalence was estimated at 12.5% (95%CI: 10.5; 14.7), ranging from 7.4% to 24.3% between municipalities. No significant differences were found in prevalence of infection according to race/color, schooling, or family income, but lower prevalence was seen in individuals with a pensioner living in the same household, who did not receive emergency financial aid, and whose family income had not decreased after social distancing measures during the epidemic. Estimated prevalence of SARS-CoV-2 antibodies in this population-based survey is essential to measure the magnitude of the disease and will back measures to confront and control the pandemic.

Los datos de seroprevalencia proporcionan información relevante relacionada con el desarrollo y la progresión de la pandemia del COVID-19. El objetivo fue estimar la prevalencia de anticuerpos anti-SARS-CoV-2 en Mato Grosso, Brasil, y su distribución según las características sociodemográficas y económicas. Encuesta seroepidemiológica de base poblacional, realizada entre septiembre y octubre de 2020 con individuos de los 18 años o más en diez municipios del estado de Mato Grosso. Las entrevistas y la recolección de material biológico se realizaron en el domicilio de los participantes, y para la determinación de anticuerpos IgG contra el SARS-CoV-2 se utilizó la quimioluminiscencia. Se evaluaron a 4.306 individuos, y la prevalencia del COVID-19 se estimó en un 12,5% (IC95%: 10,5; 14,7), que van del 7,4% al 24,3% entre los municipios. No se encontraron diferencias en la prevalencia de infección según la raza/color de la piel, la educación o los ingresos familiares; sin embargo, se encontró una menor prevalencia entre los individuos que vivían con un residente que recibía una pensión, que no recibía ayuda económica de emergencia y que los ingresos familiares no disminuyeron tras las medidas de distanciamiento social para hacer frente a la pandemia. La prevalencia de anticuerpos contra el SARS-CoV-2 estimada en esta investigación de base poblacional es imprescindible para conocer la magnitud de la enfermedad en el estado y subvencionar las acciones de enfrentamiento y control de la pandemia.

Assessment of the tongue frenulum in Beckwith-Wiedemann syndrome: Pre- and post-frenectomy findings.

AIM: To report the pre- and post-frenectomy findings of a patient with Beckwith-Wiedemann syndrome. METHODS AND RESULTS: Clinical case report of a patient with a confirmed genetic-molecular diagnosis of the referred syndrome. The minor was evaluated and reassessed by the protocol for the evaluation of the tongue's frenulum for babies in two moments: pre-surgical and 2 months after the frenectomy. The surgical procedure was performed using the traditional technique and, after the procedure, the minor was breastfed and received photobiomodulation with a red laser. The minor obtained 16 points in the neonatal tongue screening test, indicating the need for a frenectomy. Thus, she was referred to a dentist for surgery. After the surgical procedure, macroglossia was observed as a maternal complaint (previously not mentioned). The wound healing was satisfactory, and the total score obtained in the reapplication of the protocol (five points) showed functional results of improvements in sucking and tongue mobility, justifying the importance of the frenectomy. CONCLUSION: Frenectomy, despite showing macroglossia related to the Beckwith-Wiedemann syndrome, allowed anatomical and functional advances of the tongue in the present clinical case.