Spatial Distribution of Canine Sporotrichosis in Rio de Janeiro, Brazil (1998-2018) and Its Correlation with Socioeconomic Conditions.

Canine sporotrichosis is a poorly described global disease and a spatial approach has not yet been used to assess the disease in dogs. Therefore, this study aimed to describe the occurrence of canine sporotrichosis in the state of Rio de Janeiro, Brazil, from 1998 to 2018 and its correlation with socioeconomic characteristics using exploratory spatial data analysis. A total of 295 cases of canine sporotrichosis were identified and 249 were georeferenced. There was a higher concentration of cases in the municipality of Rio de Janeiro, as well as along the border of the city and the adjacent municipalities in the great metropolitan area. The cases occurred in areas where most of the dwellings are houses. Moreover, no focus of disease density was found in the southern part of Rio de Janeiro city over the period studied, possibly due to better socioeconomic conditions. Areas with a high concentration of canine sporotrichosis cases coincided with regions that possessed a low proportion of households without paving, suggesting that the disease is not necessarily linked to extreme poverty. The mapping of areas with a greater density of cases is fundamental to formulate targeted and strategic plans in order to implement effective public health prevention and control measures.

How to overcome the stagnation of the first dose vaccine coverage curve against coronavirus disease 2019 in Brazil?

BACKGROUND: A large percentage of the population has not yet started vaccination, for which the increase in coverage is almost null. METHODS: We used segmented regression analysis to estimate trends in the first dose coverage curve. RESULTS: There has been a slowdown in the application of the first doses in Brazil since epidemiological week 36 (average percent change [APC] 0.83%, 95% confidence interval [CI] 0.75-0.91%), with a trend close to stagnation. CONCLUSIONS: It is important to develop strategies to increase access to vaccination posts. Furthermore, it is recommended to expand vaccination to children, thereby increasing the eligible population.

A Spatial Analysis of the Spread of Hyperendemic Sporotrichosis in the State of Rio de Janeiro, Brazil.

Sporotrichosis is a subacute/chronic subcutaneous mycosis. Since the late 1990s, there has been a hyperendemic zoonotic transmission in the state of Rio de Janeiro, involving Sporothrix brasiliensis, the most virulent causative species, and a "belt" was described along the limits between the capital and its outskirts ("Baixada Fluminense"). This study analyzes the distribution of sporotrichosis using secondary data from the Notifiable Diseases Information System (Sinan) of the Rio de Janeiro State Health Department (SES/RJ) from 2011 to 2015 and from the INI Electronic Patient Record System (Sipec) from 2008 to 2015. Cases diagnosed since the onset of the hyperendemic exceed all previously reported case series of the disease and there is a progressive expansion in the state of Rio de Janeiro. The study suggests the spread of the mycosis to all regions of the state and the expansion of the previously described "belt", despite public health measures and changes in its profile over the years, with great social impact.

Ecological and environmental factors affecting transmission of sylvatic yellow fever in the 2017-2019 outbreak in the Atlantic Forest, Brazil.

BACKGROUND: Yellow fever virus (YFV) is an arbovirus that, despite the existence of a safe and effective vaccine, continues to cause outbreaks of varying dimensions in the Americas and Africa. Between 2017 and 2019, Brazil registered un unprecedented sylvatic YFV outbreak whose severity was the result of its spread into zones of the Atlantic Forest with no signals of viral circulation for nearly 80 years. METHODS: To investigate the influence of climatic, environmental, and ecological factors governing the dispersion and force of infection of YFV in a naïve area such as the landscape mosaic of Rio de Janeiro (RJ), we combined the analyses of a large set of data including entomological sampling performed before and during the 2017-2019 outbreak, with the geolocation of human and nonhuman primates (NHP) and mosquito infections. RESULTS: A greater abundance of Haemagogus mosquitoes combined with lower richness and diversity of mosquito fauna increased the probability of finding a YFV-infected mosquito. Furthermore, the analysis of functional traits showed that certain functional groups, composed mainly of Aedini mosquitoes which includes Aedes and Haemagogus mosquitoes, are also more representative in areas where infected mosquitoes were found. Human and NHP infections were more common in two types of landscapes: large and continuous forest, capable of harboring many YFV hosts, and patches of small forest fragments, where environmental imbalance can lead to a greater density of the primary vectors and high human exposure. In both, we show that most human infections (~ 62%) occurred within an 11-km radius of the finding of an infected NHP, which is in line with the flight range of the primary vectors. CONCLUSIONS: Together, our data suggest that entomological data and landscape composition analyses may help to predict areas permissive to yellow fever outbreaks, allowing protective measures to be taken to avoid human cases.

How to overcome the stagnation of the first dose vaccine coverage curve against coronavirus disease 2019 in Brazil?

ABSTRACT Background: A large percentage of the population has not yet started vaccination, for which the increase in coverage is almost null. Methods: We used segmented regression analysis to estimate trends in the first dose coverage curve. Results: There has been a slowdown in the application of the first doses in Brazil since epidemiological week 36 (average percent change [APC] 0.83%, 95% confidence interval [CI] 0.75-0.91%), with a trend close to stagnation. Conclusions: It is important to develop strategies to increase access to vaccination posts. Furthermore, it is recommended to expand vaccination to children, thereby increasing the eligible population.

Influence of the social determinants on the incidence of aids in Piauí: an ecological study / Influencia de los determinantes sociales sobre la incidencia del sida en Piauí: un estudio ecológico / Influência dos determinantes sociais sobre a incidência de aids no Piauí: um estudo ecológico

ABSTRACT Objective: to identify the social factors that determine the incidence of aids in the Piauí territory. Method: an ecological study that uses geoprocessing techniques in which 2,908 aids cases of individuals residing in Piauí were considered, notified to the Notifiable Disease Information System (Sistema de Informações de Agravos de Notificação, SINAN), from 2007 to 2015. Gross and Bayesian incidence rates were calculated using the population of the central year (2011), multiplied by 100,000 inhabitants, with Bayesian statistics used to identify spatial clusters. The non-spatial Ordinary Least Squares Estimation (OLS) and spatial Geographically Weighted Regression (GWR) regression models were used to identify the social determinants of the incidence of aids in the state, with 5% of significance. Results: the highest rates of the disease are concentrated in cities near the capital Teresina, with a Bayesian incidence of over 11.27 cases/100,000 inhabitants. The predictor variables of the incidence of ADIS in Piauí cities were the following: the percentage of individuals in houses with inadequate walls (p=0.0139), the mean number of residents per household (p=0.0309), and the percentage of individuals in households vulnerable to poverty and in which no one has completed elementary school (p=0.0051). Conclusion: according to GWR, the social factors that influence the incidence of aids in the cities of Piauí are the percentage of individuals in houses with inadequate walls, the mean number of residents per household, and the percentage of individuals in houses vulnerable to poverty and in which no one has completed elementary school. Given the above, interventions on the health social determinants of a structural nature should be established as effective methods for the prevention of HIV/ aids.

RESUMEN Objetivo: identificar los factores sociales que determinan la incidencia del SIDA en el territorio de Piauí. Método: estudio ecológico en el que se emplearon técnicas de geoprocesamiento donde se consideraron 2.908 casos de SIDA de residentes de Piauí notificados al Sistema de Información de Enfermedades Notificables (Sistema de Informações de Agravos de Notificação, SINAN) en el período 2007-2015. Los índices brutos y Bayesianos de incidencia se calcularon utilizando la población del año central (2011), multiplicada por 100.000 habitantes, empleándose la estadística Bayesiana para identificar agrupamientos espaciales. Se utilizaron los modelos de regresión no espacial Ordinary Least Squares Estimation (OLS) y espacial Geographically Weighted Regression (GWR) para identificar los determinantes sociales de la incidencia del SIDA en el estado, con una significancia del 5%. Resultados: los índices más elevados de la enfermedad se concentran especialmente en municipios próximos a la capital Teresina, con incidencia Bayesiana superior a 11,27 casos/100.000 habitantes. Las variables predictoras de la incidencia del SIDA en los municipios de Piauí fueron las siguientes: porcentaje de personas que viven en domicilios con paredes no adecuadas (p=0,0139), media de moradores por domicilio (p=0,0309) y porcentaje de personas que viven en domicilios vulnerables a la pobreza y en los que ninguno de los moradores ha completado la educación primaria (p=0,0051). Conclusión: De acuerdo con el modelo GWR, los factores sociales que influencian la incidencia del SIDA en los municipios de Piauí son los siguientes: porcentaje de personas que viven en domicilios con paredes no adecuadas, media de moradores por domicilio y porcentaje de personas que viven en domicilios vulnerables a la pobreza y en los que ninguno de los moradores ha completado la educación primaria. Frente a esta situación, se deben instaurar intervenciones sobre los determinantes sociales de la salud de carácter estructural como métodos efectivos de prevención del VIH/SIDA.

RESUMO Objetivo: identificar os fatores sociais que determinam a incidência de aids no território piauiense. Método: estudo ecológico com uso de técnicas de geoprocessamento em que se considerou 2.908 casos de aids de residentes no Piauí notificados no Sistema de Informações de Agravos de Notificação (SINAN) no período 2007-2015. As taxas de incidência brutas e bayesianas foram calculadas utilizando-se a população do ano central (2011), multiplicado por 100.000 habitantes, sendo a estatística bayesiana empregada para identificação de clusters espaciais. Os modelos de regressão não espacial Ordinary Least Squares Estimation (OLS) e espacial Geographically Weighted Regression (GWR) foram usados para identificar os determinantes sociais da incidência de aids no estado, com significância de 5%. Resultados: as maiores taxas da doença se concentram especialmente em municípios próximos à capital Teresina, com incidência bayesiana acima de 11,27 casos/100.000 habitantes. As variáveis preditoras da incidência de aids nos municípios piauienses foram: percentual de pessoas em domicílios com paredes inadequadas (p=0,0139), média de moradores por domicílio (p=0,0309) e percentual de pessoas em domicílios vulneráveis à pobreza e em que ninguém tem ensino fundamental completo (p=0,0051). Conclusão: de acordo com o GWR, os fatores sociais que influenciam a incidência de aids nos municípios piauienses são percentual de pessoas em domicílios com paredes inadequadas, média de moradores por domicílio e percentual de pessoas em domicílios vulneráveis à pobreza e em que ninguém tem ensino fundamental completo. Diante disso, Intervenções sobre os determinantes sociais da saúde de caráter estrutural devem se fixar como métodos efetivos de prevenção do HIV/aids.

Mortality of motorcyclists due to traffic injuries in Brasil: a population-based study in Brazilian capitals.

OBJECTIVE: To analyze the mortality trend of young men who were victims of traffic injuries involving motorcycles in all Brazilian capitals from 2001 to 2015. METHODS: A time-series study on all deaths of men aged 20-39 years old due to traffic injuries involving motorcycles in all 27 Brazilian capitals. We used the joinpoint regression model for temporal analysis and calculated the Annual Percent Change (APC) and Average Annual Percent Change (AAPC) to verify the mortality trends. RESULTS: A total of 12,058 deaths of young men were recorded in the Brazilian capitals during the period studied. The highest mortality rates were observed in Boa Vista/Roraima (34.0/100,000 population) and Palmas/Tocantins (29.80/100,000). Twelve of the 27 capitals showed an increasing trend in mortality, with the highest percentage increase being observed in Salvador (APC: 29.0%) and São Paulo (APC: 13.1%). None of the capitals showed a decline in the trend of mortality. CONCLUSIONS: Overall, the mortality of young men from traffic injuries involving motorcycles shows an increasing trend in 12 of the 27 capitals, which represents a public health problem that requires the implementation of more effective public policies.

Adherence to physical contact restriction measures and the spread of COVID-19 in Brazil. / Adesão às medidas de restrição de contato físico e disseminação da COVID-19 no Brasil.

OBJECTIVE: To analyze the adherence of the population to physical contact restriction measures and the spread of COVID-19 in Brazil. METHODS: This was a web-based health survey carried out from April 24 to May 24 2020 using a chain sampling procedure. Intensity of adherence to physical contact restriction measures was analyzed according to sociodemographic characteristics, using logistic regression models to investigate associations with 'No/little adherence'. RESULTS: Of the 45,161 participants, 74.2% (73.8;74.6%) reported intense adherence to the measures. The group that did not adhere to the measures was characterized by men (31.7%), those aged 30 to 49 (36.4%), those with low education levels (33.0%), those who worked during the pandemic (81.3%), those resident in the North (28.1%) and Midwest (28.5%) regions of the country. In Brazil as a whole, there was a decrease in COVID-19 daily growth rates, from 45.4% to 5.0%. CONCLUSION: A large part of the Brazilian population adhered to physical contact restriction measures, which possibly contributed to decreasing the spread of COVID-19.

Mortality due to acquired immunodeficiency syndrome and associated social factors: a spatial analysis.

OBJECTIVE: To analyze the spatial pattern of AIDS mortality and social factors associated with its occurrence. METHODS: An ecological study that considered 955 AIDS deaths of residents in Piauí, reported in the Mortality Information System (MIS) from 2007 to 2015. Non-spatial and spatial regression models were used to identify social determinants of AIDS mortality, with a significance of 5%. RESULTS: The predictors of AIDS mortality were illiteracy rate in males (p = 0.020), proportion of households with water supply (p = 0.015), percentage of people in households with inadequate walls (p = 0.022), percentage of people in households vulnerable to poverty and in whom no one has completed primary education (p = 0.000) and percentage of people in households vulnerable to poverty and dependent on the elderly (p = 0.009). CONCLUSION: Social indicators related to education, job and income generation and housing were associated with AIDS mortality.

Mortality of motorcyclists due to traffic injuries in Brasil: a population-based study in Brazilian capitals

SUMMARY OBJECTIVE: To analyze the mortality trend of young men who were victims of traffic injuries involving motorcycles in all Brazilian capitals from 2001 to 2015. METHODS: A time-series study on all deaths of men aged 20-39 years old due to traffic injuries involving motorcycles in all 27 Brazilian capitals. We used the joinpoint regression model for temporal analysis and calculated the Annual Percent Change (APC) and Average Annual Percent Change (AAPC) to verify the mortality trends. RESULTS: A total of 12,058 deaths of young men were recorded in the Brazilian capitals during the period studied. The highest mortality rates were observed in Boa Vista/Roraima (34.0/100,000 population) and Palmas/Tocantins (29.80/100,000). Twelve of the 27 capitals showed an increasing trend in mortality, with the highest percentage increase being observed in Salvador (APC: 29.0%) and São Paulo (APC: 13.1%). None of the capitals showed a decline in the trend of mortality. CONCLUSIONS: Overall, the mortality of young men from traffic injuries involving motorcycles shows an increasing trend in 12 of the 27 capitals, which represents a public health problem that requires the implementation of more effective public policies.

RESUMO OBJETIVO: Analisar a tendência temporal da mortalidade de homens jovens vítimas de acidente de trânsito envolvendo motocicletas em todas as capitais brasileiras de 2001 a 2015. MÉTODOS: Estudo de séries temporais incluindo as mortes de homens de 20 a 39 anos por lesões no trânsito envolvendo motocicletas nas 27 capitais brasileiras. Para a análise, foi utilizado o modelo de regressão do ponto de inflexão e calculada a Variação Percentual Anual (APC) e a Variação Percentual Anual Média (AAPC). RESULTADOS: Foram registradas 12.058 mortes de homens jovens nas capitais brasileiras durante o período estudado. As maiores taxas de mortalidade foram observadas em Boa Vista/Roraima (34,0/100.000 habitantes) e Palmas/Tocantins (29,80/100.000). Doze capitais apresentaram tendência crescente de mortalidade, sendo o maior aumento percentual em Salvador (APC: 29,0%) e São Paulo (APC: 13,1%). Nenhuma das capitais mostrou declínio nas taxas. CONCLUSÕES: A mortalidade de jovens por lesões no trânsito envolvendo motocicletas tem mostrado uma tendência crescente em 12 capitais, o que representa um problema de saúde pública que requer a implementação de políticas públicas mais eficazes.

High prevalence of hepatitis A in indigenous population in north Brazil.

OBJECTIVES: Little is known about hepatitis A virus (HAV) prevalence in indigenous communities. This study aims to evaluate the prevalence of HAV in indigenous community compared to urban population located at Western Amazon in Brazil. RESULTS: A total of 872 serum samples were obtained from 491 indigenous and 381 non indigenous individuals aging 0 to 90 years. Samples were tested for total and IgM anti-HAV and positive IgM samples were tested for HAV RNA. The overall prevalence of total anti-HAV was 87%, increased according age showing 100% of prevalence in those aging more than 30 years (p < 0.0001) and it was similar among indigenous and urban population. Total anti-HAV prevalence varied between tribes (p < 0.0001) and urban sites (p = 0.0014) and spatial distribution showed high prevalence in homes that received up to 100 dollars. IgM anti-HAV prevalence was 1.7% with predominance in males, those aging more than 41 years. No HAV RNA was detected. In conclusion, high overall anti-HAV prevalence was found in indigenous communities in North Brazil demonstrating the importance of universal vaccination in this group.

Is it time to talk about the end of social distancing? A joinpoint analysis of COVID-19 time series in Brazilian capitals.

INTRODUCTION: Monitoring coronavirus disease (COVID-19)-related infections and deaths in Brazil is controversial, with increasing pressure to ease social distance measures. However, no evidence of a sustained, widespread fall in cases exists. METHODS: We used segmented (joinpoint) regression analysis to describe the behavior of COVID-19 infections in Brazilian capital cities. RESULTS: All capitals showed an exponential or a near-exponential increase in cases through May. A decline in reported cases was subsequently noted in 20 cities but was only significant for 8 (29.6%) and was followed in two by a renewed increase. CONCLUSIONS: Caution is warranted when considering the relaxation of restrictions.

[Spatial modeling of leprosy in the state of Bahia, Brazil, (2001-2015) and social determinants of health]. / Modelagem espacial da hanseníase no estado da Bahia, Brasil, (2001-2015) e determinantes sociais da saúde.

This work analyzes the spatial distribution of leprosy in Bahia and associated social determinants. It is an ecological study, with leprosy data from 2001-2015. Three epidemiological indicators were selected: coefficient of detection in the general population and in children under 15 and the rate of new cases with grade II physical disability. These indicators were flattened by the Local Empirical Bayesian Model and Global and Local Moran statistics were applied. The independent variables were selected from the IBGE-2010 Census. Multivariate regressions were employed, followed by spatial regression. Leprosy exhibited a heterogeneous distribution in the state, with concentration in the north-west axis and the south region. For the general detection coefficient, five variables composed the final model: demographic density, urban population proportion, per capita income, proportion of extremely poor and households with over three people per dormitory. The illiteracy proportion made up the final model for the grade II rate of physical disability. No determinants of the occurrence of the disease were identified in children under 15. The modeling used contributed to demonstrate the spatial heterogeneity and social determinants of the disease in Bahia, revealing the complexity of the problem.

O trabalho analisa a distribuição espacial da hanseníase na Bahia e os determinantes sociais relacionados. Estudo ecológico com dados de hanseníase do período 2001-2015. Três indicadores epidemiológicos foram selecionados: coeficiente de detecção na população geral e em menores de 15 anos e a taxa de casos novos com grau II de incapacidade. Os indicadores foram suavizados pelo Modelo Bayesiano Empírico Local e aplicou-se estatística de Moran Global e Local. As variáveis independentes foram selecionadas a partir do Censo IBGE-2010. Regressões multivariadas foram empregadas, seguidas de regressão espacial. Observou-se distribuição heterogênea no estado, com concentração no eixo norte-oeste e região sul. Para o coeficiente de detecção geral, cinco variáveis compuseram o modelo: densidade demográfica, proporção da população urbana, renda per capita, proporção de extremamente pobres e domicílios com mais de três pessoas por dormitório. A proporção de analfabetismo compôs o modelo final para a taxa de grau II de incapacidade física. Não foram identificados determinantes da ocorrência da doença em menores de 15 anos. A modelagem utilizada contribuiu para demonstrar a heterogeneidade espacial e os determinantes sociais da doença na Bahia, colocando em evidência a complexidade do problema.

Modelagem espacial da hanseníase no estado da Bahia, Brasil, (2001-2015) e determinantes sociais da saúde / Spatial modeling of leprosy in the state of Bahia, Brazil, (2001-2015) and social determinants of health

Resumo O trabalho analisa a distribuição espacial da hanseníase na Bahia e os determinantes sociais relacionados. Estudo ecológico com dados de hanseníase do período 2001-2015. Três indicadores epidemiológicos foram selecionados: coeficiente de detecção na população geral e em menores de 15 anos e a taxa de casos novos com grau II de incapacidade. Os indicadores foram suavizados pelo Modelo Bayesiano Empírico Local e aplicou-se estatística de Moran Global e Local. As variáveis independentes foram selecionadas a partir do Censo IBGE-2010. Regressões multivariadas foram empregadas, seguidas de regressão espacial. Observou-se distribuição heterogênea no estado, com concentração no eixo norte-oeste e região sul. Para o coeficiente de detecção geral, cinco variáveis compuseram o modelo: densidade demográfica, proporção da população urbana, renda per capita, proporção de extremamente pobres e domicílios com mais de três pessoas por dormitório. A proporção de analfabetismo compôs o modelo final para a taxa de grau II de incapacidade física. Não foram identificados determinantes da ocorrência da doença em menores de 15 anos. A modelagem utilizada contribuiu para demonstrar a heterogeneidade espacial e os determinantes sociais da doença na Bahia, colocando em evidência a complexidade do problema.

Abstract This work analyzes the spatial distribution of leprosy in Bahia and associated social determinants. It is an ecological study, with leprosy data from 2001-2015. Three epidemiological indicators were selected: coefficient of detection in the general population and in children under 15 and the rate of new cases with grade II physical disability. These indicators were flattened by the Local Empirical Bayesian Model and Global and Local Moran statistics were applied. The independent variables were selected from the IBGE-2010 Census. Multivariate regressions were employed, followed by spatial regression. Leprosy exhibited a heterogeneous distribution in the state, with concentration in the north-west axis and the south region. For the general detection coefficient, five variables composed the final model: demographic density, urban population proportion, per capita income, proportion of extremely poor and households with over three people per dormitory. The illiteracy proportion made up the final model for the grade II rate of physical disability. No determinants of the occurrence of the disease were identified in children under 15. The modeling used contributed to demonstrate the spatial heterogeneity and social determinants of the disease in Bahia, revealing the complexity of the problem.

Adesão às medidas de restrição de contato físico e disseminação da COVID-19 no Brasil / Adhesión a medidas de restricción de contacto físico y diseminación del COVID-19 en Brasil / Adherence to physical contact restriction measures and the spread of COVID-19 in Brazil

Objetivo: Analisar a adesão da população às medidas de restrição de contato físico e disseminação da COVID-19 no Brasil. Métodos: Inquérito de saúde, realizado pela internet, com amostragem em cadeia, no período de 24 de abril a 24 de maio de 2020. A intensidade da adesão à restrição de contato físico foi analisada segundo características sociodemográficas, utilizando-se modelos de regressão logística para investigar associações com 'Nenhuma/pouca adesão'. Resultados: Dos 45.161 participantes, 74,2% (73,8-74,6%) relataram intensa adesão às medidas. O grupo que não aderiu às medidas foi composto homens (31,7%), com idade de 30 a 49 anos (36,4%), baixa escolaridade (33,0%), trabalhando durante a pandemia (81,3%), residentes nas regiões Norte (28,1%) e Centro-Oeste (28,5%) do país. Houve importante redução das taxas de crescimento diário, de 45,4 para 5,0%. Conclusão: Grande parte da população brasileira aderiu às medidas de restrição de contato físico, o que, possivelmente, contribuiu para reduzir a disseminação da COVID-19.

Objetivo: Analizar la adhesión de los brasileños a las medidas de restricción de contacto físico y diseminación del COVID-19. Métodos: Encuesta de salud realizada por internet con muesteo em cadena entre 24 de abril y 24 de mayo de 2020. La intensidad de la adhesión a la restricción de contacto físico se analizó de acuerdo con características sociodemográficas, utilizando modelos de regresión logística para investigar asociaciones con 'Ninguna/poca adhesión'. Resultados: Participaron 45.161, de los cuales un 74,2% (73,8;74,6%) informó intensa adhesión. El grupo con poca adhesión se caracterizó por hombres (31,7%), 30-49 años (36,4%), baja educación (33,0%), que trabajaron durante la pandemia (81,3%), residiendo em las regiones Norte (28,1%) y Centro-Oeste (28,5%) del país. En Brasil hubo una reducción relevante em las tasas de crecimiento diario, del 45,4% al 5,0%. Conclusión: Gran parte de la población adhirió a las medidas de restricción de contacto físico, lo que posiblemente contribuyó a la disminución de la diseminación del COVID-19.

Objective: To analyze the adherence of the population to physical contact restriction measures and the spread of COVID-19 in Brazil. Methods: This was a web-based health survey carried out from April 24 to May 24 2020 using a chain sampling procedure. Intensity of adherence to physical contact restriction measures was analyzed according to sociodemographic characteristics, using logistic regression models to investigate associations with 'No/little adherence'. Results: Of the 45,161 participants, 74.2% (73.8;74.6%) reported intense adherence to the measures. The group that did not adhere to the measures was characterized by men (31.7%), those aged 30 to 49 (36.4%), those with low education levels (33.0%), those who worked during the pandemic (81.3%), those resident in the North (28.1%) and Midwest (28.5%) regions of the country. In Brazil as a whole, there was a decrease in COVID-19 daily growth rates, from 45.4% to 5.0%. Conclusion: A large part of the Brazilian population adhered to physical contact restriction measures, which possibly contributed to decreasing the spread of COVID-19.

Is it time to talk about the end of social distancing? A joinpoint analysis of COVID-19 time series in Brazilian capitals

Abstract INTRODUCTION: Monitoring coronavirus disease (COVID-19)-related infections and deaths in Brazil is controversial, with increasing pressure to ease social distance measures. However, no evidence of a sustained, widespread fall in cases exists. METHODS We used segmented (joinpoint) regression analysis to describe the behavior of COVID-19 infections in Brazilian capital cities. RESULTS All capitals showed an exponential or a near-exponential increase in cases through May. A decline in reported cases was subsequently noted in 20 cities but was only significant for 8 (29.6%) and was followed in two by a renewed increase. CONCLUSIONS Caution is warranted when considering the relaxation of restrictions.

Mortality due to acquired immunodeficiency syndrome and associated social factors: a spatial analysis / Mortalidad por el síndrome de la inmunodeficiencia adquirida y factores sociales relacionados: un análisis espacial / Mortalidade pela síndrome da imunodeficiência adquirida e fatores sociais associados: uma análise espacial

ABSTRACT Objective: To analyze the spatial pattern of AIDS mortality and social factors associated with its occurrence. Methods: An ecological study that considered 955 AIDS deaths of residents in Piauí, reported in the Mortality Information System (MIS) from 2007 to 2015. Non-spatial and spatial regression models were used to identify social determinants of AIDS mortality, with a significance of 5%. Results: The predictors of AIDS mortality were illiteracy rate in males (p = 0.020), proportion of households with water supply (p = 0.015), percentage of people in households with inadequate walls (p = 0.022), percentage of people in households vulnerable to poverty and in whom no one has completed primary education (p = 0.000) and percentage of people in households vulnerable to poverty and dependent on the elderly (p = 0.009). Conclusion: Social indicators related to education, job and income generation and housing were associated with AIDS mortality.

RESUMEN Objetivo: Analizar el estándar espacial de la mortalidad por sida y factores sociales relacionados a su ocurrencia. Métodos: Estudio ecológico que consideró 955 óbitos por sida de residentes en Piauí, notificados en el Sistema de Informaciones sobre Mortalidad (SIM) de 2007 a 2015. Modelos de regresión no espacial y espacial han sido usados para identificar determinantes sociales de la mortalidad por sida, con significación de 5%. Resultados: Las variables indicadoras de la mortalidad por sida han sido tasa de analfabetismo en el sexo masculino (p = 0,020), proporción de domicilios con abastecimiento de agua (p = 0,015), porcentual de personas en domicilios con paredes inadecuadas (p = 0,022), porcentual de personas en domicilios vulnerables a la pobreza y en que ninguno tiene enseñanza fundamental completa (p = 0,000) y porcentual de personas en domicilios vulnerables a la pobreza y dependientes de ancianos (p = 0,009). Conclusión: Han sido relacionados a la mortalidad por sida indicadores sociales relacionados a la educación, generación de empleo y renta y habitación.

RESUMO Objetivo: Analisar o padrão espacial da mortalidade por aids e fatores sociais associados à sua ocorrência. Métodos: Estudo ecológico que considerou 955 óbitos por aids de residentes no Piauí, notificados no Sistema de Informações sobre Mortalidade (SIM) de 2007 a 2015. Modelos de regressão não espacial e espacial foram usados para identificar determinantes sociais da mortalidade por aids, com significância de 5%. Resultados: As variáveis preditoras da mortalidade por aids foram taxa de analfabetismo no sexo masculino (p = 0,020), proporção de domicílios com abastecimento de água (p = 0,015), percentual de pessoas em domicílios com paredes inadequadas (p = 0,022), percentual de pessoas em domicílios vulneráveis à pobreza e em que ninguém tem ensino fundamental completo (p = 0,000) e percentual de pessoas em domicílios vulneráveis à pobreza e dependentes de idosos (p = 0,009). Conclusão: Foram associados à mortalidade por aids indicadores sociais relacionados à educação, geração de emprego e renda e habitação.

Spatial spread of malaria and economic frontier expansion in the Brazilian Amazon.

The temporal and spatial evolution of malaria was described for the postfrontier phase of the Brazilian Amazon in 2003-2013. The current ecological study aimed to understand the relationship between spatial population mobility and the distribution of malaria cases. The study identified epidemiologically relevant areas using regional statistical modeling and spatial analyses that considered differential infections and types of work activities. Annual parasite incidence (API) in the region was highest in hotspots along the Amazon River and in the south and west settlement zone of Hiléia, with concentrations in environmental protection areas and açaí and Brazil nut extraction areas. The dispersal force decreased in the Central Amazon due to rapid urbanization and improved socioeconomic conditions for workers in consolidated settlement areas. The study characterized the spatial patterns of disease transmission according to the economic activity and regionalization of geographic areas, confirming that the incidence of infection by work activity and labor flow is linked to extractive activities and agricultural settlements.