Urban arbovirus exposure in blood donations from an endemic area of Brazil.

BACKGROUND AND OBJECTIVES: In Brazil, urban arboviruses, such as dengue virus (DENV), Zika virus (ZIKV) and chikungunya virus (CHIKV), constitute a major public health problem, and due to their endemicity and asymptomatic cases, they pose a potential threat to blood donations. Rio de Janeiro (RJ), Brazil, has been impacted by extensive DENV epidemics over the last 30 years and, after 2015, by CHIKV and ZIKV. MATERIALS AND METHODS: Urban arboviruses DENV, ZIKV and CHIKV were investigated in blood donations (n = 778) at the State Institute of Hematology, HEMORIO (RJ) from 2019 to 2022 by serological and molecular methods. RESULTS: An overall arbovirus exposure was observed in 26.1% of the blood donations. Anti-DENV IgM was detected in 4.0% of samples and two donations were DENV NS1 positive. Positive anti-CHIKV IgM was observed in 4.7% of the donations. Co-detection of anti-CHIKV IgM and anti-DENV IgM was observed in 1.0% of donors, and CHIKV prevalence was 21.3%. All blood donations tested were negative for the DENV, ZIKV and CHIKV RNA. CONCLUSION: IgM seroprevalence to the arboviruses analyzed here is an indicator of recent infection in asymptomatic donors, showing that the population of blood donors can be a vehicle for new infections, especially during epidemic periods.

Characterisation of the novel HLA-DQB1*03:01:61 allele, first identified in a Brazilian individual.

The novel HLA-DQB1*03:01:61 allele, first described in a potential bone marrow donor from Brazil.

Exploring the urban arbovirus landscape in Rio de Janeiro, Brazil: transmission dynamics and patterns of disease spread.

Background: This study focuses on urban arboviruses, specifically dengue (DENV), chikungunya (CHIKV), and Zika (ZIKV), which pose a significant public health challenge in Rio de Janeiro state, Southeast Brazil. In our research, we highlight critical findings on the transmission dynamics of these arboviruses in Rio de Janeiro, identifying distinct patterns of disease spread. Methods: By combining genomic data with case reports from the Brazilian Ministry of Health, we have analysed the phylogenetics, prevalence and spatial distribution of these endemic viruses within the state. Findings: Our results revealed sustained DENV transmission primarily in the northern part of the state, a significant ZIKV epidemic in 2016 affecting all mesoregions, and two major CHIKV outbreaks in 2018 and 2019, predominantly impacting the northern and southern areas. Our analysis suggests an inverse relationship between arboviral case incidence and urban density, with less populous regions experiencing higher transmission rates, potentially attributed to a complex interplay of factors such as the efficacy of vector control measures, environmental conditions, local immunity levels, and human mobility. Furthermore, our investigation unveiled distinct age and gender trends among affected individuals. Notably, dengue cases were predominantly observed in young adults aged 32, while chikungunya cases were more prevalent among individuals over 41. In contrast, cases of ZIKV were concentrated around the 33-year age group. Intriguingly, females accounted for nearly 60% of the cases, suggesting a potential gender-based difference in infection rates. Interpretation: Our findings underscore the complexity of arbovirus transmission and the need for interventions tailored to different geographical mesoregions. Enhanced surveillance and genomic sequencing will be essential for a deeper, more nuanced understanding of regional arbovirus dynamics. Identifying potential blind spots within the state will be pivotal for developing and implementing more effective public health strategies, specifically designed to address the unique challenges posed by these viruses throughout the state. Funding: This study was supported by the National Institutes of Health USA grant U01 AI151698 for the United World Arbovirus Research Network (UWARN) and the CRP-ICGEB RESEARCH GRANT 2020 Project CRP/BRA20-03.

Characterisation of the novel HLA-B*18:243 allele using short- and long-read sequencing technologies.

The novel HLA-B*18:243 allele, first described in a potential bone marrow donor from Brazil.

Characterisation of the novel HLA-DRB1*03:215 allele using short- and long-read sequencing technologies.

The novel HLA-DRB1*03:215 allele, first described in a potential bone marrow donor from Brazil.

Characterisation of the novel HLA-C*15:274 allele using short and long-read sequencing technologies.

The novel HLA-C*15:274 allele, first described in a potential bone marrow donor from Brazil.

Characterisation of the novel HLA-B*35:593 allele using short and long-read sequencing technologies.

The novel HLA-B*35:593 allele, first described in a potential bone marrow donor from Brazil.

Characterisation of the novel HLA-C*08:275 allele, first identified in a Brazilian individual.

The novel HLA-C*08:275 allele, first described in a potential bone marrow donor from Brazil.

Characterisation of the novel HLA-A*02:1140 allele, first identified in a Brazilian individual.

The novel HLA-A*02:1140 allele, first described in a potential bone marrow donor from Brazil.

Nature-based solutions potential for flood risk reduction under extreme rainfall events.

Climate change will substantially increase extreme rainfall events, especially in the Tropics, enhancing flood risks. Such imminent risks require climate adaptation strategies to endure extreme rainfall and increase drainage systems. Here, we evaluate the potential of nature-based solutions by using an ecosystem service modeling approach, evaluating the impact of extreme rainfall events on flood risks in a large urban area and with a real-world land recovery plan. We evaluate the cost-effectiveness of four different land recovery scenarios and associated co-benefits, based on a gradient increase in area recovered and cost of implementation. Although the scenarios reveal increasing flood risk reduction and co-benefits along with greater proportion of land recovery, the most cost-effective scenario was the one with an intermediate land recovery where 30% of the study area would be reforested. We emphasize the striking benefits of nature-based solutions for flood risk reduction in cities, considering landscape scale and stakeholders' needs.

Piroplasmid Infections Among Domestic Dogs in the Mountain City of Rio de Janeiro, Brazil.

PURPOSE: The aim of the present study was to analyze the frequency of the piroplasmids in blood from dogs and ticks recovered from these animals in Teresópolis city, located in the mountain region of Rio de Janeiro state, Brazil. In addition to the clinical and hematological profile. METHODS: A total of 400 dogs attended in a veterinary clinic in this city between 2020 and 2021 were included. The blood was collected from the dogs, along with ticks and information on these dogs was obtained through a questionnaire applied to the owners. Thin-smear analyses and complete blood counts were performed. All forms characteristic of piroplasmids were measured and classified morphologically. The blood was also subjected to PCR assays based on the genes 18S rRNA and hsp70. In addition, the ixodid ticks were classified morphologically and subjected to PCR for piroplasmids research. The amplified products were sent for gene sequencing. RESULTS: Piroplasmids were detected in 2.3% of the dogs. The variables statistically associated with infections in these animals were hemorrhage/bleeding, jaundice, anisocytosis, activated monocytes and macroplatelets (p ≤ 0.05). Piriform, ring-shaped, oval and aberrant structures were viewed in erythrocytes, neutrophils and monocytes, with lengths greater than and less than 2.5 µm. The nine positive samples from these dogs were characterized as due to Rangelia vitalii. However, one sequence from B. vogeli was detected in a single adult specimen of R. sanguineus. CONCLUSION: Although circulation of two species of piroplasmids potentially infective for domestic dogs has been observed in the mountain city of Rio de Janeiro, infection due to R. vitalii was mostly seen in the dogs of the present study.

Characterisation of the novel HLA-A*30:218 allele using two different sequencing technologies.

The novel HLA-A*30:218 allele, first described in a potential bone marrow donor from Brazil.

Assessment of the performance of cruise ship waste management: Case study of the Rio de Janeiro port, Brazil.

The significant growth of the cruise ship industry has resulted in economic benefits, but there are also waste management-related challenges. The aim of this case study was to contribute to the research of cruise ship waste management at the Port of Rio de Janeiro. A3 methodology, applied for the first time in this context, was used to create questionnaires to assess the stakeholders involved, revealing that institutional bureaucracy has a negative effect on waste management. In addition, secondary data on unloaded waste, obtained from the transport manifests, showed that 56 % contained reliable information. The main wastes were plastics (57 %), glass (17 %), metal (9 %), and others. With respect to destinations, 41 % were sent to landfills, 55 % recycled and 4 % thermally treated. Only 5 % of cruise ship moorings removed waste at the Port of Rio de Janeiro, attributed to factors such as high costs.

Ciliate diversity in rodrigo de freitas lagoon (Rio de Janeiro, Brazil) from an integrative standpoint.

The Rodrigo de Freitas Lagoon is a highly eutrophic lacustrine system and has one of the longest histories of exploration and anthropic alteration in Brazil. Despite its relevance, limited studies explored the diversity of micro-eukaryotes in the lagoon. Ciliates (Alveolata, Ciliophora) are overlooked in environmental microbiology, especially in tropical and subtropical ecosystems, resulting in limited knowledge about their diversity and functional relevance in South American habitats, particularly in coastal lagoons. To fill this gap, here we investigated the diversity of ciliates in a brackish coastal lagoon in an urban area of Rio de Janeiro, Brazil, applying and comparing the performance of morphological and metabarcoding approaches. The metabarcoding analysis, based on high-throughput sequencing of the hipervariable region V4 of the 18S rRNA genes detected 37 molecular operational taxonomic units (MOTUs) assigned to Ciliophora, representing only about a half (56.9%) of the diversity detected by microscopy, which counted 65 ciliate morphotypes. The most representative classes in both approaches were Spirotrichea and Oligohymenophorea. The metabarcoding analysis revealed that 35.3% of the ciliate MOTUs had less than 97% similarity to available sequences in the NCBI database, indicating that more than one-third of these MOTUs potentially represents still not represented or undescribed ciliate species in current databases. Our findings indicate that metabarcoding techniques can significantly enhance the comprehension of ciliate diversity in tropical environments, but the scarcity of reference sequences of brackish ciliates in molecular databases represents a challenge to the taxonomic assignment of the MOTUs. This study provides new insights into the diversity of ciliates in a threatened coastal lagoon, revealing a vast array of still unknown and rare ciliate taxonomic units in tropical environments.

Was the COVID-19 epidemic synchronous in space? An analysis in the health regions of the Rio de Janeiro state, 2020-2022 / A epidemia de COVID-19 foi síncrona no espaço? Uma análise nas regiões de saúde do estado do Rio de Janeiro, 2020-2022

ABSTRACT Objective: To analyze the spatio-temporal dynamics of COVID-19 in the Rio de Janeiro state within the nine health regions, between March 2020 and December 2022. Methods: The Poisson model with random effects was used to smooth and estimate the incidence of COVID-19 hospitalizations reported in the Influenza Epidemiological Surveillance Information System (SIVEP-Gripe) to verify the synchronicity of the epidemic in the state. Results: The COVID-19 epidemic in the state is characterized by the presence of seven peaks during the analyzed period corresponding to seven found. An asynchrony in hospitalizations was identified, varying according to the different virus variants in the nine health regions of the state. The incidence peaks of hospitalizations ranged from 1 to 12 cases per 100,000 inhabitants during the pandemic. Conclusion: This spatio-temporal analysis is applicable to other scenarios, enabling monitoring and decision-making for the control of epidemic diseases in different areas.

RESUMO Objetivo: Analisar a dinâmica espaço-temporal de COVID-19 no estado do Rio de Janeiro nas nove regiões de saúde, entre março de 2020 e dezembro de 2022. Métodos: Utilizou-se o modelo de Poisson com efeitos aleatórios para suavizar a curva de incidência de hospitalizações por COVID-19 notificadas no Sistema de Informação da Vigilância Epidemiológica da Gripe (Sivep-Gripe) para verificar a sincronicidade da epidemia no estado. Resultados: A epidemia de COVID-19 no estado é caracterizada pela presença de sete picos no período analisado correspondentes a sete variantes encontradas. Identificou-se uma assincronicidade nas hospitalizações, variando de acordo com as diferentes variantes do vírus nas nove regiões de saúde do estado. Os picos de incidência das hospitalizações variaram de 1 a 12 casos por 100 mil habitantes no decorrer da pandemia. Conclusão: Essa análise espaço-temporal é extensível em outros cenários, sendo possível o monitoramento e a tomada de decisões de controle de doenças epidêmicas em várias áreas.

Unidos na diferença: sobre a vocação da sociologia brasileira no Instituto Universitário de Pesquisas do Rio de Janeiro, 1973-1977 / United in difference: on the vocation of Brazilian sociology at the Instituto Universitário de Pesquisas do Rio de Janeiro, 1973-1977

Resumo Este artigo busca compreender a vocação científica consagrada pela primeira geração (1973-1977) de pesquisadores do Programa de Pós-graduação em Sociologia do Instituto Universitário de Pesquisas do Rio de Janeiro (Iuperj). Embora o Iuperj seja visto como berço da moderna ciência política brasileira, pouco se sabe sobre sua sociologia. Para tal, baseamo-nos em documentos, entrevistas e bibliografia secundária. Queremos nuançar diagnósticos sobre essa geração, ora vista como excessivamente heterogênea, ora como pouco original se comparada à ciência política iuperjiana. Na vocação daquela geração, o elogio à especialização teórico-metodológica era parte central de uma sociologia política que buscava dar respostas às demandas de uma sociedade na encruzilhada entre modernização e redemocratização.

Abstract This article investigates the first generation (1973-1977) of researchers trained in the Graduate Program in Sociology at the Instituto Universitário de Pesquisas do Rio de Janeiro (IUPERJ). While IUPERJ is known as the birthplace of modern Brazilian political science, sociology there is less well known. Using documentary resources, interviews, and the secondary literature, we take a nuanced look at this generation, which has been described as both excessively heterogeneous and less original in comparison to political science at IUPERJ. For them, theoretical and methodological specialization was seen as central to a political sociology that sought responses to the demands of a society at the crossroads between modernization and redemocratization.

Fernandes Figueira e a higiene infantil no Rio de Janeiro, 1880-1930 / Fernandes Figueira and children's health in Rio de Janeiro, 1880-1930

Resumo O artigo discute a relação entre o médico Antônio Fernandes Figueira e a higiene infantil no período de institucionalização dos estudos acerca da saúde da criança no Brasil. A higiene infantil é fruto da emergência do conceito de saúde em contraposição à doença. Interessa-nos compreender como a higiene infantil se estabeleceu, se em parceria ou oposição à pediatria. Enfatizamos como a circulação das ideias sobre a saúde da criança chegou ao país e como esse médico dialoga com as discussões europeias e as reinterpreta. Nosso fio condutor é a alimentação infantil como pilar da higiene infantil. Para tal, nos baseamos no Livro das mães: consultas práticas de higiene infantil, publicado pelo médico em 1910.

Abstract This article discusses the relationship between the physician Antônio Fernandes Figueira and children's health during the time that studies in this area were being institutionalized in Brazil. Children's health resulted from the emergence of the concept of health in contrast with disease; here we focus on how children's health became established, in partnership with or opposition to pediatrics. We emphasize how the circulation of ideas on children's health reached Brazil, and how this physician dialogued with and reinterpreted European discussions. A central theme is children's nutrition. We focused on Livro das mães: consultas práticas de higiene infantil [The mothers' book: practical queries on children's health], published by Fernandes Figueira in 1910.

Human mobility and socioeconomic datasets of the Rio de Janeiro metropolitan area.

This data descriptor presents two main datasets and a set of auxiliary files. The mobility dataset presents a long-term study of human mobility in the Rio de Janeiro Metropolitan Area (RJMA) performed in the entire year of 2014 based on mobile phone data. The socioeconomic dataset presents selected socioeconomic variables of the Brazilian 2010 census. A set of auxiliary files is included to present georeferenced information and geographic features (shapefiles) and data used to validate the mobility estimates. The human mobility estimation was carried out using a methodology that allows direct integration with census data, based on an approximation of the geographic boundaries of census units by an aggregation of Voronoi polygons of the mobile phone antennas. The study area is the Brazilian local area 21, which includes the entire RJMA and four other municipalities. The mobility dataset is divided into two files: one is an estimation of the origin-destination (OD) matrix per day, and the other is a visitors' dataset where the number of visitors of each location is estimated in four shifts each day. The socioeconomic dataset presents information of 55 variables for each location, which have been used in different studies and present the longest human mobility dataset available for public use.

O HIV/Aids no Estado do Rio de Janeiro: cenário clínico-epidemiológico e rede de tratamento e internação / HIV/AIDS in the State of Rio de Janeiro: clinical-epidemiological scenario and treatment and hospitalization network

O Brasil vem incorporando, desde o início da epidemia de Aids até os dias atuais, tecnologias mais modernas para o controle do HIV/Aids e para o adequado diagnóstico. Os recursos de diagnóstico e tratamento disponíveis no SUS oferecem tratamento para a infecção, permitindo que as pessoas vivendo com HIV/Aids (PVHA) tenham boa qualidade de vida. O cenário epidemiológico atual do HIV/Aids no Estado do Rio de Janeiro apresenta taxas de detecção e mortalidade maiores que a média nacional, a despeito de esforços e investimentos. Assim, este trabalho apresenta o cenário epidemiológico do HIV/Aids no Estado do Rio de Janeiro no período de 2017 a 2022; caracteriza, através dos dados coletados nos sistemas de informação, as etapas do cuidado do HIV/Aids no ERJ em 2022 e descreve a rede de tratamento e internação para as PVHA no Estado do Rio de Janeiro em 2022. Trata-se de pesquisa exploratória, com dados secundários oriundos dos sistemas de informação utilizados no cuidado às PVHA (SICLOM ­ Sistema de controle logístico de medicamentos e SISCEL ­ Sistema de Controle de Exames Laboratoriais da Rede Nacional de Contagem de Linfócitos CD4+/CD8+ e Carga Viral) além do SINAN e do SIM. De 2017 até 2022, foram notificados no SINAN 27.548 casos de HIV, 17.254 casos de Aids e 4.833 gestantes infectadas pelo HIV. No mesmo período, foram registrados no SIM 8.492 óbitos por Aids no ERJ, com decréscimo de aproximadamente 10% de 2017 para 2021. Em 2021, 18,9% das Declarações de Óbito (D.O.) por Aids tinham menção de tuberculose. Foi identificado que aproximadamente 46% das pessoas diagnosticadas com HIV no ERJ apresentaram-se tardiamente a um serviço de saúde (CD4<350cels/ml). Em 2022, uma pessoa levava em média 26 dias para iniciar o tratamento após realizar o 1º CD4 no ERJ, 10 dias a mais que no Estado de São Paulo. Atualmente, o país conta com um total de 1.314 unidades distribuidoras de medicamentos (UDM), 19,4% das quais localizadas no Rio de Janeiro e 18,2% em São Paulo. Considerando o cenário apresentado, uma das hipóteses levantadas são a possibilidade de a coinfecção TB HIV contribuir para a mortalidade acima da média nacional. Outra possibilidade é que nossa ampla rede de tratamento não acarreta maior acesso e a rede de internação possui uma concentração de leitos na capital, exigindo bom sistema de regulação para que o acesso possa ser equânime. (AU)

Since the beginning of the Aids epidemic to the present day, Brazil has been incorporating more modern technologies for the control of HIV/Aids and for adequate diagnosis. The diagnostic and treatment resources available in the SUS offer treatment for the infection, allowing people living with HIV/Aids (PLWHA) to have a good quality of life. The current epidemiological scenario of HIV/Aids in the State of Rio de Janeiro presents detection and mortality rates higher than the national average, despite efforts and investments. The clinical monitoring indicators for PLWHA residing in the State of Rio de Janeiro (ERJ) do not present results compatible with the epidemiological scenario. Therefore, this work presents the epidemiological scenario of HIV/Aids in the State of Rio de Janeiro from 2017 to 2022; characterize, through data collected in information systems, the stages of HIV/Aids care in ERJ in 2022 and describe the treatment and hospitalization network for PLWHA in the State of Rio de Janeiro in 2022. This is exploratory research, with secondary data originating from information systems used in the care of PLWHA (SICLOM ­ Medication Logistics Control System and SISCEL ­ Laboratory Testing Control System of the National CD4+/CD8+ Lymphocyte Count Network and Viral Load) in addition to SINAN and SIM. From 2017 to 2022, 27,548 cases of HIV, 17,254 cases of Aids and 4,833 pregnant women infected with HIV were reported on SINAN. In the same period, 8,492 deaths due to Aids were registered in the SIM in ERJ, with a decrease of approximately 10% from 2017 to 2021. In 2021, 18.9% of Death Certificates (D.O.) due to Aids mentioned tuberculosis. It was identified that approximately 46% of people diagnosed with HIV in ERJ presented to a health service late (CD4<350cells/ml). In 2022, it took an average of 26 days for a person to start treatment after undergoing the 1st CD4 in ERJ, 10 days longer than in the State of São Paulo. Currently the country has a total of 1,314 Medicine Distribution Units (UDM), 19.4% of which are located in Rio de Janeiro and 18.2% in São Paulo. Considering this scenario, one hypothesis is the possibility that TB HIV co-infection contributes to mortality above the national average. Another possibility is that our wide treatment network does not lead to greater access and the hospitalization network has a concentration of beds in the capital, requiring a good regulation system so that access can be equitable. (AU)

Helminth Fauna of Juvenile Green Sea Turtles (Chelonia mydas) from Rio de Janeiro State, Brazil.

The helminth fauna of juvenile green sea turtles (Chelonia mydas Linnaeus, 1758) is still poorly known. Herein, we study the gastrointestinal helminths of 28 juvenile green sea turtles found stranded on the north coast of Rio de Janeiro state, Brazil. All turtles were infected showing a rich helminth fauna. In total, 14802 trematodes belonging to 30 species and 5 families including Micros-caphidiidae, Plagiorchiidae, Pronocephalidae, Hapalotrematidae, and Telorchiidae were recovered. An unidentified nematode specimens was also found. The mean intensity was 536 (95% CI = 362 - 853) (range: 1 - 2831), and the species richness was 7.86 (95% CI = 6.46 - 9.21) (range: 1 - 17). The coast of Rio de Janeiro state represents new locality records for Angiodictyum posterovitellatum, Microscaphidium aberrans, M. warui, Octangium hyphalum, O. sagitta, Enodiotrema reductum and Pleurogonius laterouterus. This study confirms that the green sea turtle harbors the richest helminth fauna among sea turtle species and provides useful information on the gastrointestinal helminths of a poorly known stage in the life cycle of this endangered chelonian.