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OBJECTIVES: The study investigated the longitudinal association between physical activity and the risk of long COVID in patients who recovered from COVID-19 infection. STUDY DESIGN: We analyzed longitudinal data of the Prospective Study About Mental and Physical Health cohort, a prospective cohort study with adults living in Southern Brazil. METHODS: Participants responded to an online, self-administered questionnaire in June 2020 (wave 1) and June 2022 (wave 4). Only participants who self-reported a positive test for COVID-19 were included. Physical activity was assessed before (wave 1, retrospectively) and during the pandemic (wave 1). Long COVID was assessed in wave 4 and defined as any post-COVID-19 symptoms that persisted for at least 3 months after infection. RESULTS: A total of 237 participants (75.1% women; mean age [standard deviation]: 37.1 [12.3]) were included in this study. The prevalence of physical inactivity in baseline was 71.7%, whereas 76.4% were classified with long COVID in wave 4. In the multivariate analysis, physical activity during the pandemic was associated with a reduced likelihood of long COVID (prevalence ratio [PR]: 0.83; 95% confidence interval [CI]: 0.69-0.99) and a reduced duration of long COVID symptoms (odds ratio: 0.44; 95% CI: 0.26-0.75). Participants who remained physically active from before to during the pandemic were less likely to report long COVID (PR: 0.74; 95% CI: 0.58-0.95), fatigue (PR: 0.49; 95% CI: 0.32-0.76), neurological complications (PR: 0.47; 95% CI: 0.27-0.80), cough (PR: 0.40; 95% CI: 0.22-0.71), and loss of sense of smell or taste (PR: 0.43; 95% CI: 0.21-0.87) as symptom-specific long COVID. CONCLUSION: Physical activity practice was associated with reduced risk of long COVID in adults.
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Objective To evaluate the incidence of COVID-19 and its main outcomes in rheumatic disease (RD) patients on hydroxychloroquine (HCQ) compared to household cohabitants (HC).Methods This is a 24-week nationwide prospective multi-centre cohort with a control group without RD and not using HCQ. All participants were monitored through scheduled phone interviews performed by health professionals. Details regarding COVID-19 symptoms, and epidemiological, clinical, and demographic data were recorded on a specific web-based platform. COVID-19 was defined according to the Brazilian Ministry of Health criteria and classified as mild, moderate or severe.Results A total of 9,585 participants, 5,164 (53.9%) RD patients on HCQ and 4,421 (46.1%) HC were enrolled from March 29th, 2020 to September 30th, 2020, according to the eligibility criteria. COVID-19 confirmed cases were higher in RD patients than in cohabitants [728 (14.1%) vs. 427 (9.7%), p<0.001] in a 24-week follow-up. However, there was no significant difference regarding outcomes related to moderate/ severe COVID-19 (7.1% and 7.3%, respectively, p=0.896). After multiple adjustments, risk factors associated with hospitalisation were age over 65 (HR=4.5;95%CI 1.35-15.04, p=0.014) and cardiopathy (HR=2.57;95%CI 1.12-5.91, p=0.026). The final survival analysis demonstrated the probability of dying in 180 days after a COVID-19 diagnosis was significantly higher in patients over 65 years (HR=20.8;95%CI 4.5-96.1) and with 2 or more comorbidities (HR=10.8;95%CI 1.1-107.9 and HR=24.8;95%CI 2.5-249.3, p=0.006, respectively).Conclusion Although RD patients have had a higher COVID-19 incidence than individuals from the same epidemiological background, the COVID-19 severity was related to traditional risk factors, particularly multiple comorbidities and age, and not to underlying RD and HCQ.
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Introducao: Asvacinas anti-Sars CoV-2 demonstraram que sao primordiais para o controle da pandemia por possibilitarem o desenvolvimento de imunidade em pessoas devidamente vacinadas. Objetivos: O objetivo do presente estudo foi avaliar o desenvolvimento de anticorpos neutralizantes em profissionais de saude apos duas doses das vacinasCoronaVac e AstraZeneca. Metodologia: Exames com principio de quimioluminescencia LIAISONSARS CoV-2 S1/S2 IgG - DIASORIN foram realizados no Laboratorio de Sorologia do Hemocentro de Joao Pessoa, e contagens acima de 15 AU/mL (Unidades Formadoras de Anticorpos por mL) caracterizaram desenvolvimento de protecao anti-Sars CoV-2. Cem (100) profissionais de saude foram estudados apos imunizacao com CoronaVac e AstraZeneca. Resultados: Apos a primeira dose da vacina CoronaVac, 61,4% dos profissisonais de saude ainda permaneceram com baixos niveis de anticorpos;apenas 38,6% conseguiram se imunizar. Ja apos a segunda dose da CoronaVac, apenas 12% permaneceram nao imunes, e 88% se imunizaram. Desses nao imunes, um profissional de saude faleceu com Covid-19.Considerando a vacina Astrazeneca, apenas 23,8% dos profissionais de saude nao se imunizaram apos a primeira dose, sendo que 76, 2% desenvolveram anticorpos neutralizantes. Apos receberem a segunda dose da Astrazeneca, 100% dos profissionais ficaram imunizados. Discussao: Considerando que, apos contato com a vacina, nosso organismo demora entre 7 - 14 dias para desenvolvimento de anticorpos, e que estes tem meia vida entre 20 a 28 dias, os soros dos participantes foram coletados apos exatos 20 dias a partir da imunizacao dos participantes para garantia de deteccao de anticorpos. Com o final da meia vida circulante dos anticorpos IgG, os linfocitos T de memoria serao os responsaveis pela resposta imune do nosso organismo. Conclusao: O presente estudo demonstrou a evolucao do desenvolvimento de anticorpos neutralizantes contra Covid-19 apos cada dose dos diferentes tipos de vacinas aplicados em profissionais de saude, bem como a importancia de mais de uma dose de imunizante para completa seguranca vacinal da populacao. Copyright © 2022
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SARS-CoV-2 is the causative agent of COVID-19. The dimeric form of the viral Mpro is responsible for the cleavage of the viral polyprotein in 11 sites, including its own N- and C-terminus. The lack of structural information for intermediary forms of Mpro is a setback for the understanding its self-maturation process. Herein, we used X-ray crystallography combined with biochemical data to characterize multiple forms of SARS-CoV-2 Mpro. For the immature form, we show that extra N-terminal residues caused conformational changes in the positioning of domainthree over the active site, hampering the dimerization and diminishing its activity. We propose that this form preludes the cis and trans-cleavage of N-terminal residues. Using fragment screening, we probe new cavities in this form which can be used to guide therapeutic development. Furthermore, we characterized a serine site-directed mutant of the Mpro bound to its endogenous Nand C-terminal residues during dimeric association stage of the maturation process. We suggest this form is a transitional state during the C-terminal trans-cleavage. This data sheds light in the structural modifications of the SARS-CoV-2 main protease during its self-maturation process.
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BACKGROUND: Wide variation in mortality rates among critically ill patients with coronavirus disease 2019 (COVID-19) has been reported. This study evaluated whether healthcare-associated infections (HAI) are a risk factor for death among patients with severe COVID-19 in the intensive care unit (ICU). METHODS: This retrospective cohort study included patients with severe COVID-19 hospitalized in the ICU of four hospitals in the city of Curitiba, Brazil. Patients with COVID-19 who died during ICU hospitalization were compared with those who were discharged. A second analysis compared patients who developed HAI in the ICU with those who did not. Multiple logistic regression models were used to control for confounders. RESULTS: In total, 400 patients were included, and 123 (31%) patients developed HAI. The most common HAI was lower respiratory tract infection (67%). Independent risk factors for death were: age [odds ratio (OR) 1.75, 95% confidence interval (CI) 1.43-2.15; P<0.0001]; clinical severity score (OR 2.21, 95% CI 1.70-2.87; P<0.0001); renal replacement therapy (OR 12.8, 95% CI 5.78-28.6; P<0.0001); and HAI (OR 5.9, 95% CI 3.31-10.5; P<0.0001). A longer interval between symptom onset and hospital admission was protective against death (OR 0.93, 95% CI 0.88-0.98; P=0.017). The only independent factors associated with HAI were high C-reactive protein and low PaO2/FiO2 ratio. CONCLUSIONS: No factors that could point to a high-risk group for HAI acquisition were identified. However, age, dialysis and HAI increased the risk of death in ICU patients with severe COVID-19; of these, HAI is the only preventable risk factor.
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COVID-19 , Cross Infection , Delivery of Health Care , Humans , Intensive Care Units , Renal Dialysis , Retrospective Studies , Risk FactorsABSTRACT
Objective: Coronavirus disease 2019 (COVID-19) pandemic may have indirect consequences in ST-segment elevation myocardial infarction (STEMI) outcomes due to difficulties in healthcare access, but also due to reperfusion delays. The objective of this study was to evaluate the performance indicators in STEMI during the early phase of the lockdown following the COVID-19 pandemic. Methods: The patient delay and the system delay were evaluated in 312 patients with suspected STEMI, in the period of the first State of Emergency in Portugal, through a survey called Moment COVID implemented within 18th March to 2 May 2020, in 18 national centers of Interventional Cardiology where PPCI is carried out 24/7. These patients were compared with a historical cohort of 267 patients from the 5th year after integration of SFL Initiative in Portugal (Moment 2015) in which the same survey was applied. Patients with late presentation of STEMI (>12 hours of symptoms onset) were excluded from this analysis. Results: In Moment COVID there was a trend towards a longer patient delay (incremental median 20 min;p=0.059) and a significant longer system-delay (incremental median 17 min;p=0.033) compared to the historical cohort of Moment 2015. Consequently, times to revascularization tended to be longer (incremental median 26 min;p=0.074). Indeed, in Moment COVID patients were less compliant with the times recommended by the European guidelines: door-to-balloon time <60 min was achieved in 47.6% of patients compared to 57.0% (p=0.052) in Moment 2015 and system-delay <90 min in 13.9% compared to 21.8% (p=0.033). Conclusion: These results from a multicentric national analysis demonstrated a trend to longer time from symptom onset to request healthcare system assistance and a significantly longer time from first medical contact to revascularization among patients with STEMI during COVID-19 pandemic. This delay for treatment could negatively impact the STEMI prognosis at the long-term.
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Objectives: The engagement of undergraduate medical students (MS) in clinical research may lead to improvement in scientific method critical analysis, better performance as young physicians, awareness of innovation, and the development of leadership skills and teamwork perspectives (1). This study evaluated changings in daily routine and the awareness of patients' realities reported by MS participating on a research project involving rheumatic patients in Brazil during the COVID-19 pandemic. Methods: A secondary analysis of a web-based cross-sectional survey (2) including MS participating of Mário Pinotti II study (MPII) (3) was performed. Demographic characterization and the description of the MS impressions of the impact of participating of MPII are reported. Results: A total of 228 (58%) MS involved in MPII responded to the survey: 151 (66%) were women with (Mean(SD)) 22.8 (2.8) years of age, most were studying in public (N = 135 (59%)) medical schools, from 10 Brazilian states. Figures 1 and 2 summarizeMS' reports on the impact of participating of MPII on their daily routine and increased awareness of patient's realities. Conclusion: MS participating on the MPII study reported a better understanding of rheumatic patients' fears and uncertainties during the COVID-19 pandemic, including hydroxychloroquine shortage, lack of medical appointments and an unmet need related to more adequate information addressed to the rheumatic diseases. Furthermore, the close interaction among rheumatic patients, faculty, rheumatologists, and otherMShave provided a significant improvement in their feelings of usefulness during the pandemic and could contribute to their future professional activities.
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Background: The role of chronic use of hydroxychloroquine (HCQ) in rheumatic disease (RD) patients during the SARS-CoV-2 pandemic is still subject of discussion. Objectives: To compare the occurrence of COVID-19 and its outcomes between RD patients on HCQ use with individuals from the same household not taking the drug during community viral transmission in an observational prospective multicenter study in Brazil. Methods: Participants were enrolled and monitored through 24-week (From March 29th to Sep 30th, 2020) regularly scheduled phone calls performed by trained medical professionals. Epidemiological and demographic data, as well as RD disease activity status and current treatment data, specific information about COVID-19, hospitalization, need for intensive care, and death was recorded in both groups and stored in the Research Electronic Data Capture (REDCap) database. COVID-19 was defined according to the Brazilian Ministry of Health (BMH) criteria. The statistical analysis was performed using IBM-SPSS v.20.0 software. Group comparisons were made using the Man-Whitney, Chi-Square and Fisher Exact Test, as well as multivariate regression models adjusted to confounders. Survival curves were performed using Kaplan-Meier analysis. Results: A total of 10,427 participants mean age (SD) of 44.04 (14.98) years were enrolled, including 6004 (57.6%) rheumatic disease patients, of whom 70.8% had systemic lupus erythematosus (SLE), 6.7% rheumatoid arthritis (RA), 4% primary Sjögren's syndrome (pSS), 1.8% mixed connective tissue disease (DMTC), 1% systemic sclerosis (SSc) and others (15.9), including overlap syndromes. In total, 1,132 (10.8%) participants fulfilled criteria for COVID-19, being 6.7% RD patients and 4.1% controls (p=0.002). A recent influenza vaccination had a protective role (p<0.001). Moderate and severe COVID-19 included the need for hospitalization, intensive care, mechanical ventilation or death. Infection severity was not different between groups (p=0.391) (Table 1). After adjustments for multiple confounders, the main risk factors significantly associated with COVID-19 were higher education level (OR=1.29 95%CI 1.05-1.59), being healthcare professionals (OR=1.91;95%CI 1.45-2.53), presence of two comorbidities (OR=1.31;95%CI 1.01-1.66) and three or more comorbidities associated (OR=1.69;95%CI 1.23-2.32). Interestingly, age ≥=65 years (OR=0.20;95%CI 0.11-0.34) was negatively associated. Regarding RD, the risk factors associated with COVID-19 diagnosys were SLE (OR= 2.37;95%CI 1.92-293), SSc (OR=2.25;95%CI 1.05-4.83) and rituximab use (OR=1.92;95%CI 1.13-3.26). In addition, age ≥=65 years (OR=5.47;95%CI 1.7-19.4) and heart disease (OR=2.60;95%CI 1.06-6.38) were associated with hospitalization. Seven female RD patients died, six with SLE and one with pSS, and the presence of two or more comorbidities were associated with higher mortality rate. Conclusion: Chronic HCQ use did not prevent COVID-19 in RD compared to their household cohabitants. Health care profession, presence of comorbidities LES, SSc and rituximab were identified as main risk factors for COVID-19 and aging and heart disease as higher risk for hospitalization. Our data suggest these outcomes could be considered to manage them in clinical practice.
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Background: Mental health was widely affected during the new coronavirus pandemic. In addition, some measures adopted by most countries in order to contain the virus spread, such as isolation and social distancing, leading to the interruption of routine activities, including partial or complete interruption of face-to-face classes may be associated with increased stress, depression and anxiety among undergraduate medical students (1). From March to September, 2020, the Brazilian Society of Rheumatology carried out the Mario Pinotti II Project (MPII), a prospective, multicenter, observational cohort study designed to monitor the COVID-19 in patients with rheumatic disease on hydroxychloroquine, using periodic telephone calls performed by undergraduate medical students (2). Objectives: To compare the mental health status of medical students who were participating from the MPII with theirs colleagues not involved in this project. Methods: A web-based survey via google forms platform was developed by a panel composed of undergraduate medical students, rheumatologists, medical school professors, and a psychology professor. It included details on demographic and life habits data and domains regarding depression, anxiety and stress, using the DASS-21 (Depression, Anxiety & Stress Scale), Brazilian version. Data collection occurred from July 20th to August 31st, 2020. Statistical analysis was performed using the SPSS version 20.0. Univariate and multivariate linear regression analysis were performed to verify associations with the DASS-21, defined as dependent variable. A p-value < 0.05 was deemed as significant. This study was approved by the Institutional Research Ethics Committee. Results: A total of 684 undergraduate medical students were included in this study, of whom 228 as MPII volunteers (VG) and 456 as control group (CG). Median age was 23 years (IQ 21-24) and the CG was older than the VG (p<0.03). Most of them were white (68.8%) and women (63%). There were no significant differences regarding comorbidities, ethnicity, smoking status, alcohol intake and physical activity. Older age, male gender, participation of MPII study, absence of a worsening in sleep pattern during the pandemic and a lower number of prior comorbidities were associated with lower DASS21 scores, suggesting a better mental health (Table 1). Conclusion: Several aspects may be involved with mental health, including increased emotional maturity, gender and sleep pattern. Although with marginal independent association, medical students with participation in the MPII study had better mental health than their student colleagues not engaged with this research. Our data pointed out that voluntary participation in a research project which foresees interaction by telephone contact with rheumatic patients, professors, rheumatologists, and colleagues is associated with better mental health.
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OBJECTIVES: To evaluate the incidence of COVID-19 and its main outcomes in rheumatic disease (RD) patients on hydroxychloroquine (HCQ) compared to household cohabitants (HC). METHODS: This is a 24-week nationwide prospective multi-centre cohort with a control group without RD and not using HCQ. All participants were monitored through scheduled phone interviews performed by health professionals. Details regarding COVID-19 symptoms, and epidemiological, clinical, and demographic data were recorded on a specific web-based platform. COVID-19 was defined according to the Brazilian Ministry of Health criteria and classified as mild, moderate or severe. RESULTS: A total of 9,585 participants, 5,164 (53.9%) RD patients on HCQ and 4,421 (46.1%) HC were enrolled from March 29th, 2020 to September 30th, 2020, according to the eligibility criteria. COVID-19 confirmed cases were higher in RD patients than in cohabitants [728 (14.1%) vs. 427 (9.7%), p<0.001] in a 24-week follow-up. However, there was no significant difference regarding outcomes related to moderate/ severe COVID-19 (7.1% and 7.3%, respectively, p=0.896). After multiple adjustments, risk factors associated with hospitalisation were age over 65 (HR=4.5;95%CI 1.35-15.04, p=0.014) and cardiopathy (HR=2.57;95%CI 1.12-5.91, p=0.026). The final survival analysis demonstrated the probability of dying in 180 days after a COVID-19 diagnosis was significantly higher in patients over 65 years (HR=20.8;95%CI 4.5-96.1) and with 2 or more comorbidities (HR=10.8;95%CI 1.1-107.9 and HR=24.8;95%CI 2.5-249.3, p=0.006, respectively). CONCLUSIONS: Although RD patients have had a higher COVID-19 incidence than individuals from the same epidemiological background, the COVID-19 severity was related to traditional risk factors, particularly multiple comorbidities and age, and not to underlying RD and HCQ.
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The COVID-19 pandemic brought the urgency in the search for innovative solutions in different areas of knowledge to mitigate the effects and impacts of the disease, whether on health, social or economic terms. Urban and socio-economic determinants of informalsettlement communities make COVID-19 challenges even harder to be overcome, requiring local and situated solutions that consider their livelihood diversity. This manuscript shows the results of an exploratory pilot study which addressed the potential of participatory design to contribute to mitigating COVID-19 effects and impacts, identifying the problems, adaptative strategies, challenges for and needs of Rio de Janeiro and Belo Horizonte communities. It was drawn from triangulation of methods and analysis of multiple (primary and secondary) data sources. The needs of communities were raised through online roundtables with community members, representatives of NGOs, designers, architects and researchers. Analysis of the roundtables was conducted collaboratively by the researchers through online tools, including Affinity Mapping, and 5 Whys. The findings point out the needs of communities clustered in 6 major themes, five of which indicate potential areas in which participatory design can play a meaningful role and need to be further investigated. © 2020 Universidade do Vale do Rio dos Sinos. All rights reserved.
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SARS-CoV-2 is the causative agent of COVID-19. The dimeric form of the viral Mpro is responsible for the cleavage of the viral polyprotein in 11 sites, including its own N and C-terminus. The lack of structural information for intermediary forms of Mpro is a setback for the understanding its self-maturation process. Herein, we used X-ray crystallography combined with biochemical data to characterize multiple forms of SARS-CoV-2 Mpro. For the immature form, we show that extra N-terminal residues caused conformational changes in the positioning of domain-three over the active site, hampering the dimerization and diminishing its activity. We propose that this form preludes the cis and trans-cleavage of N-terminal residues. Using fragment screening, we probe new cavities in this form which can be used to guide therapeutic development. Furthermore, we characterized a serine site-directed mutant of the Mpro bound to its endogenous N and C-terminal residues during dimeric association stage of the maturation process. We suggest this form is a transitional state during the C-terminal trans-cleavage. This data sheds light in the structural modifications of the SARS-CoV-2 main protease during its self-maturation process.
Subject(s)
Peptide Hydrolases/chemistry , Peptide Hydrolases/metabolism , SARS-CoV-2/metabolism , Viral Proteins/chemistry , Viral Proteins/metabolism , Catalytic Domain/physiology , Crystallography, X-Ray/methods , Dimerization , HumansABSTRACT
The present article is about the academic partnership between the University of Campinas (Campinas, Brazil) and the Lusófona University (Lisbon, Portugal) for the adoption of a distance-learning methodology to students in the first year of Architecture and Urbanism at UNICAMP during COVID-19 lockdown. The contents from the online course “Drawing for Graphic Diary” were made available to UNICAMP students with minor adaptions. Three didactic practices were implemented to face the pandemic restrictions: 1) biweekly tasks to be done in the LusofonaX – Digital Academy LMS environment;2) online advice to students to resolve doubts;3) online synchronous classes with course teachers detailing the exercises and visual expressive modalities. The course design assessment was done through questionnaires that were carried out to students using Google Forms at two different moments: 1) before the course, to identify pre-existing skills and available knowledge about drawing concepts. For this, the authors depart from the following eight concepts as indicators of pre-existing competences for drawing: conic projection, two-dimensionality, surface, three-dimensionality, vanishing point, perspective construction, visual field and visual expression. After the course (2), to assess the perceived evolution of these same concepts through self-reported measures about the perceived knowledge acquired by students. Final student evaluation for the course was accessed with the Net Promoter Score (NPS). Results from the t-Tests and the NPS point to the success of the course methodology to deliver distance learning in the subject of design teaching compared to regular classes. © 2021, Springer Nature Switzerland AG.
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The objective of the research was to analyse the mobility and evolution of COVID-19 in the state of Amazonas, Brazil. For this, data were collected from confirmed cases of COVID-19 from the Fundacao de Vigilancia ern Sadde (FVS / AM), treated by the geostatistical technique of the Weighted Distance Inverse (IDW) in the geoprocessing software QGIS 3.4. These data were analysed statistically with the flows of riverboats in the State. The trips done to access health services at different levels of complexity in the State were also mapped from the IBGE Regic survey (REGIC, 2018). The results showed the association of the diffusion and evolution of the cases of COVID-19 with river transport by mobility on line riverboats, being "entry points" for the virus and with the movement of the disease toward the western part the state. Therefore, the spread by contagion in Amazonas followed the paths of the waters, by the intercity mobility of people and goods in river transport and the rapid evolution of the increase in the number of cases in the municipalities. The overall aim of this paper was to analyze the mobility and evolution of COVID-19 in Brazilian state of the Amazonas. Diffusion axes of disease were mapped and statistically analyzed in association of rowboats flows in the state. The results described an association of diffusion and evolution of the COVID-19 cases with the fluvial transport of viruses by mobility of the rowboats flows, which contributed to the internalization of disease in the state.