Increasing molecular diagnostic capacity and COVID-19 incidence in Brazil.

Different countries have adopted strategies for the early detection of SARS-CoV-2 since the declaration of community transmission by the World Health Organization (WHO) and timely diagnosis has been considered one of the major obstacles for surveillance and healthcare. Here, we report the increase of the number of laboratories to COVID-19 diagnosis in Brazil. Our results demonstrate an increase and decentralisation of certified laboratories, which does not match the much higher increase in the number of COVID-19 cases. Also, it becomes clear that laboratories are irregularly distributed over the country, with a concentration in the most developed state, São Paulo.

Two hundred days of COVID-19 in São Paulo State, Brazil.

Two hundred days after the first confirmed case of COVID-19 in Brazil, the epidemic has rapidly spread in metropolitan areas and advanced throughout the countryside. We followed the temporal epidemic pattern at São Paulo State, the most populous of the country, the first to have a confirmed case of COVID-19, and the one with the most significant number of cases until now. We analysed the number of new cases per day in each regional health department and calculated the effective reproduction number (Rt) over time. Social distance measures, along with improvement in testing and isolating positive cases, general population mask-wearing and standard health security protocols for essential and non-essential activities, were adopted and impacted on slowing down epidemic velocity but were insufficient to stop transmission.

The shadows of a ghost: a survey of canine leishmaniasis in Presidente Prudente and its spatial dispersion in the western region of São Paulo state, an emerging focus of visceral leishmaniasis in Brazil.

BACKGROUND: Visceral leishmaniasis is an emerging zoonosis and its geographic distribution is restricted to tropical and temperate regions. Most of the individuals infected in Latin America are in Brazil. Despite the control measures that have been adopted, the disease is spreading throughout new regions of the country. Domestic dogs are involved in the transmission cycle and are considered to be the main epidemiologic reservoir of Leishmania infantum (syn. L. chagasi). Our aim was to determine the prevalence of canine leishmaniasis (CL) and Ehrlichiosis infection in Presidente Prudente as well as the spatial dispersion of the disease in the western region of São Paulo state. METHODS: Dogs underwent clinical examination and symptoms related to CL were recorded. Anti- Leishmania antibodies were detected using ELISA, rK39-immunocromatographic tests (DPP), and an indirect fluorescent antibody test (IFAT). Anti-E. canis antibodies were detected by IFAT. A follow-up was conducted in dogs that were positive in the ELISA at the baseline study. Data on the spatial distribution of L. longipalpis and CL in São Paulo state were obtained from Brazilian public health agencies. RESULTS: Serum samples from 4547 dogs were analyzed. The seroprevalence of CL was 11.2% by ELISA and 4.5 % by IFAT. In the follow-up, seroprevalence was 32.9% by ELISA, 15.3% by IFAT, 11.8 % by DPP test, and 66.5% for E. canis. There was a significant positive association between Leishmania and E. canis infection (P < 0.0001). In the follow-up, clinical examinations revealed symptoms compatible with CL in 33.5% of the dogs. L. longipalpis was found in 24 and CL in 15 counties of the Presidente Prudente mesoregion. The dispersion route followed the west frontier of São Paulo state toward Paraná state. CONCLUSIONS: Low CL and high ehrlichiosis prevalence rates were found in Presidente Prudente city. This emerging focus of CL is moving through the western region of São Paulo state toward the border of Paraná state. Integrated actions to fight the vector, parasites, infected dogs, and humans are needed to monitor the disease and implement strategies for epidemiologic control.

Spatial epidemiology of American cutaneous leishmaniasis in a municipality of west São Paulo State, Brazil.

BACKGROUND & OBJECTIVES: In the last decade, in the state of São Paulo, 5898 cases of cutaneous leishmaniasis (CL) were reported. This study was undertaken to analyze the epidemiology of CL in the municipality of Teodoro Sampaio, in São Paulo State, Brazil, based on a geographic approach, as very little is known of the relationship between CL and the spatial transformation process. METHODS: This is a population-based quantitative, descriptive and cross-sectional case study. Surveys of the official notifications in the healthcare center and official sources from 1998 to 2011 were analysed. The data were described based on statistics and the Kernel method to detect hotspots of transmission. RESULTS: The age group between 21 and 40 yr was most affected, with 24 cases (57.9%). Of the 41 cases reported between 1998 and 2011, 33 cases were having low education status and 31 cases (75.6%) were males. The spatial and temporal distribution was aggregated in three-year periods which permitted the identification of two microfoci, in periods I (1998-2000) and III (2005-2007). INTERPRETATION & CONCLUSION: The disease has presented, in recent years, a pattern of sporadic transmission or microfoci, and continues to maintain enzootic cycles of Leishmania in a sylvatic environment, ensuring the perpetuation of the pathogen in nature, and the risk of emergence of new cases of CL in domestic animals and humans.

The path of canine visceral leishmaniasis versus the path of Center for Zoonoses Control: contributions of spatial analysis to health.

Visceral leishmaniasis (VL) is a public health problem in Brazilian municipalities. As much as there is a planning of public policies regards VL in São Paulo State, new cases have been reported and spread. This paper aims to discuss how the Center for Zoonoses Control conducts its actions spatially in endemic city of Presidente Prudente, São Paulo State. Data are from the Municipal Health Department of Presidente Prudente, Adolfo Lutz Institute, and Brazilian Institute of Geography and Statistics. We spatially estimated the dog population per census tract and used geoprocessing tools to perform choropleth maps, spatial trends, and spatial autocorrelation. We found a spatial pattern of higher prevalence in the city's outskirt and a positive statistically significant spatial autocorrelation (I = 0.2, p-value < 0.000) with clusters of high-high relationships in the Northwest part of the city. Moreover, we identified a different direction in the path of the conducted serosurveys versus the canine VL trend, which stresses the fragility of the Center for Zoonoses Control actions to control the disease. The Center for Zoonoses Control always seems to chase the disease. The spatial analysis may be useful for rethinking how the service works and helps in public policies.

The use of health geography modeling to understand early dispersion of COVID-19 in São Paulo, Brazil.

Public health policies to contain the spread of COVID-19 rely mainly on non-pharmacological measures. Those measures, especially social distancing, are a challenge for developing countries, such as Brazil. In São Paulo, the most populous state in Brazil (45 million inhabitants), most COVID-19 cases up to April 18th were reported in the Capital and metropolitan area. However, the inner municipalities, where 20 million people live, are also at risk. As governmental authorities discuss the loosening of measures for restricting population mobility, it is urgent to analyze the routes of dispersion of COVID-19 in São Paulo territory. We hypothesize that urban hierarchy is the main responsible for the disease spreading, and we identify the hotspots and the main routes of virus movement from the metropolis to the inner state. In this ecological study, we use geographic models of population mobility to check for patterns for the spread of SARS-CoV-2 infection. We identify two patterns based on surveillance data: one by contiguous diffusion from the capital metropolitan area, and the other hierarchical with long-distance spread through major highways that connects São Paulo city with cities of regional relevance. This knowledge can provide real-time responses to support public health strategies, optimizing the use of resources in order to minimize disease impact on population and economy.

Seasonality and weather dependance of Acinetobacter baumannii complex bloodstream infections in different climates in Brazil.

Recent studies report seasonality in healthcare-associated infections, especially those caused by Acinetobacter baumannii complex. We conducted an ecologic study aimed at analyzing the impact of seasons, weather parameters and climate control on the incidence and carbapenem-resistance in A. baumannii complex bloodstream infections (ABBSI) in hospitals from regions with different climates in Brazil. We studied monthly incidence rates (years 2006-2015) of ABBSI from hospitals in cities from different macro-regions in Brazil: Fortaleza (Ceará State, Northeast region), Goiânia (Goiás State, Middle-west) and Botucatu (São Paulo State, Southeast). Box-Jenkins models were fitted to assess seasonality, and the impact of weather parameters was analyzed in Poisson Regression models. Separate analyses were performed for carbapenem-resistant versus carbapenem-susceptible isolates, as well as for infections occurring in climate-controlled intensive care units (ICUs) versus non-climate-controlled wards. Seasonality was identified for ABSSI ICUs in the Hospitals from Botucatu and Goiânia. In the Botucatu hospital, where there was overall seasonality for both resistance groups, as well as for wards without climate control. In that hospital, the overall incidence was associated with higher temperature (incidence rate ratio for each Celsius degree, 1.05; 95% Confidence Interval, 1.01-1.09; P = 0.006). Weather parameters were not associated with ABBSI in the hospitals from Goiânia and Fortaleza. In conclusion, seasonality was found in the hospitals with higher ABBSI incidence and located in regions with greater thermal amplitude. Strict temperature control may be a tool for prevention of A. baumanii infections in healthcare settings.

Predicted distribution of sand fly (Diptera: Psychodidae) species involved in the transmission of Leishmaniasis in São Paulo state, Brazil, utilizing maximum entropy ecological niche modeling.

Leishmaniasis is a public health problem worldwide. We aimed to predict ecological niche models (ENMs) for visceral (VL) and cutaneous (CL) leishmaniasis and the sand flies involved in the transmission of leishmaniasis in São Paulo, Brazil. Phlebotomine sand flies were collected between 1985 and 2015. ENMs were created for each sand fly species using Maximum Entropy Species Distribution Modeling software, and 20 climatic variables were determined. Nyssomyia intermedia (Lutz & Neiva, 1912) and Lutzomyia longipalpis (Lutz & Neiva, 1912), the primary vectors involved in CL and VL, displayed the highest suitability across the various regions, climates, and topographies. L. longipalpis was found in the border of Paraná an area currently free of VL. The variables with the greatest impact were temperature seasonality, precipitation, and altitude. Co-presence of multiple sand fly species was observed in the cuestas and coastal areas along the border of Paraná and in the western basalt areas along the border of Mato Grosso do Sul. Human CL and VL were found in 475 of 546 (86.7%) and 106 of 645 (16.4%) of municipalities, respectively. Niche overlap between N. intermedia and L. longipalpis was found with 9208 human cases of CL and 2952 cases of VL. ENMs demonstrated that each phlebotomine sand fly species has a unique geographic distribution pattern, and the occurrence of the primary vectors of CL and VL overlapped. These data can be used by public authorities to monitor the dispersion and expansion of CL and VL vectors in São Paulo state.

Impact of the dog population and household environment for the maintenance of natural foci of Leishmania infantum transmission to human and animal hosts in endemic areas for visceral leishmaniasis in Sao Paulo state, Brazil.

When it comes to visceral leishmaniasis (VL) in Brazil, one of the main targets of public health policies of surveillance is the control of domestic canine reservoirs of Leishmania infantum. This paper aims to evaluate the effect of the dog population and household environment for the maintenance of natural foci in the transmission to human and animal hosts in an endemic city for VL, Bauru, in Brazil. We collected 6,578 blood samples of dogs living in 3,916 households from Nov.2019 to Mar.2020 and applied geospatial models to predict the disease risk based on the canine population. We used Kernel density estimation, cluster analysis, geostatistics, and Generalized Additive Models (GAM). To validate our models, we used cross-validation and created a receiver operating characteristic (ROC) curve. We found an overall canine VL (CVL) seroprevalence of 5.6% for the sampled dogs, while for the households, the positivity rate was 8.7%. Odds ratios (OR) for CVL increased progressively according to the number of canines for >2 dogs (OR 2.70); households that already had CVL in the past increased the chances for CVL currently (OR 2.73); and the cases of CVL increase the chances for human VL cases (OR 1.16). Our models were statistically significant and demonstrated a spatial association between canine and human disease cases, mainly in VL foci that remain endemic. Although the Kernel density ratio map had the best performance (AUC = 82), all the models showed high risk in the city's northwest area. Canine population dynamics must be considered in public policies, and geospatial methods may help target priority areas and planning VL surveillance in low and middle-income countries.

The path of canine visceral leishmaniasis versus the path of Center for Zoonoses Control: contributions of spatial analysis to health / O caminho da leishmaniose visceral canina versus o caminho do Centro de Controle de Zoonoses: contribuições da análise espacial para a saúde / La trayectoria de la leishmaniasis visceral canina versus la trayectoria del Centro para el Control de Zoonoses: contribuciones del análisis espacial a la salud

Visceral leishmaniasis (VL) is a public health problem in Brazilian municipalities. As much as there is a planning of public policies regards VL in São Paulo State, new cases have been reported and spread. This paper aims to discuss how the Center for Zoonoses Control conducts its actions spatially in endemic city of Presidente Prudente, São Paulo State. Data are from the Municipal Health Department of Presidente Prudente, Adolfo Lutz Institute, and Brazilian Institute of Geography and Statistics. We spatially estimated the dog population per census tract and used geoprocessing tools to perform choropleth maps, spatial trends, and spatial autocorrelation. We found a spatial pattern of higher prevalence in the city's outskirt and a positive statistically significant spatial autocorrelation (I = 0.2, p-value < 0.000) with clusters of high-high relationships in the Northwest part of the city. Moreover, we identified a different direction in the path of the conducted serosurveys versus the canine VL trend, which stresses the fragility of the Center for Zoonoses Control actions to control the disease. The Center for Zoonoses Control always seems to chase the disease. The spatial analysis may be useful for rethinking how the service works and helps in public policies.

A leishmaniose visceral (LV) é um problema de saúde pública nas cidades brasileiras. Por mais que haja um planejamento de políticas públicas para LV no Estado de São Paulo, Brasil, novos casos têm sido notificados e se disseminado. O artigo objetiva discutir como o Centro de Controle de Zoonoses realiza suas atividades espacialmente em uma cidade endêmica, Presidente Prudente, no Estado de São Paulo. Os dados são da Secretaria Municipal de Saúde de Presidente Prudente, Instituto Adolfo Lutz e Instituto Brasileiro de Geografia e Estatística. Estimamos espacialmente a população canina por setor censitário e utilizamos ferramentas de geoprocessamento para produzir mapas coropléticos, tendências espaciais e autocorrelação espacial. Encontramos um padrão espacial de maior prevalência na periferia da cidade e uma autocorrelação espacial positiva estatisticamente significativa (I = 0,2; p < 0,000) com clusters de relação alta-alta no noroeste da cidade. Além disso, identificamos uma direção diferente no caminho dos inquéritos sorológicos realizados versus a tendência na LV canina, o que enfatiza a fragilidade das medidas de controle do Centro de Controle de Zoonoses para controlar casos da doença. O Centro de Controle de Zoonoses parece estar sempre correndo atrás da doença. A análise espacial pode ser útil para repensar o funcionamento do serviço e auxiliar as políticas públicas.

La leishmaniasis visceral (LV) es un problema de salud pública en las ciudades brasileñas. Aunque hay políticas públicas de planificación relacionadas con la LV en el estado de São Paulo, Brasil, se han informado de nuevos casos, además de su propagación. El objetivo de este trabajo es discutir cómo el Centro de Control de Zoonosis dirige sus acciones espacialmente en una ciudad endémica del estado de São Paulo, Presidente Prudente. Los datos proceden de la Secretaría Municipal de Salud de Presidente Prudente, del Instituto Adolfo Lutz, y del Instituto Brasileño de Geografía y Estadística. Estimamos espacialmente la población de perros por sector censal y utilizamos herramientas de geoprocesamiento para elaborar mapas de coropletas, tendencias espaciales, y autocorrelación espacial. Encontramos un patrón espacial de más alta prevalencia en la periferia de la ciudad, además de una autocorrelación espacial positiva y estadísticamente significativa (I = 0,2; valor de p < 0,000) con clústeres de relaciones alto-alto en la parte noroccidental de la ciudad. Además, identificamos una dirección diferente en la trayectoria de las encuestas serológicas llevadas a cabo, frente a la tendencia de LV canina, que enfatiza la debilidad de acciones del Centro de Control de Zoonosis para controlar casos de la enfermedad. El Centro de Control de Zoonosis parece siempre estar tras la enfermedad. El análisis espacial podría ser útil para repensar cómo está funcionando el servicio, además de ayudar a políticas públicas.

[Health regions and geographic scales]. / Regiões de saúde e escalas geográficas.

The present article aims to discuss how the so-called health regions have been organized in Brazil since the respective governing ruling was issued (NOAS - SUS 01/2001). In order to clarify this new context, the author emphasises such concepts as region and geographic scale. The regional division under this ruling is based on the regional planning concept underlying the country's territorial policies since the founding of the Brazilian Institute of Geography and Statistics (IBGE). However, the apportionment in health regions has been both a requirement for improving the Unified National Health System (SUS) and a qualitative change in the national health policy. It is necessary to move forward by relating the regional division to the issue of scale. What is at stake is whether the regionalization of health in Brazil represents an improvement in the mediations between the various scales in the SUS.

Geospatial and modeling tools for leishmaniasis studies: a review of publication between 2008-2018

Aspects of how geospatial technologies can be used on visceral leishmaniasis (VL) control programs are discussed. We reviewed a number of papers discussing the usage of those technologies, through a PubMed literature review. Additionally, we provided conceptual elements for a development of a hierarchical scale framework on VL for decision making in São Paulo State, using Geographical Information Systems. Supported by Geospatial Techniques, we developed a view of some instruments for helping communities to better manage their risk areas. We used a classification called Strengths of GIS and Spatial Analysis in Epidemiology (SGISSAE). This review identified 50 papers published in the PubMed. With respect to developing the theoretical perspective, this paper can help to identify points of deficiency in shortage in discussions and leishmaniasis control programs, which led us to recommend future to delimitation studies to at community-based level and to define local actions to identify and manage the disease. In the conceptual framework data at community-based level will allow us to understand more broadly the changing spatial distribution of the disease.(AU)

Aspectos sobre como as tecnologias geoespaciais podem ser usadas nos programas de controle da leishmaniose visceral (LV) são discutidos. Nós confrontamos uma série de artigos discutindo o uso dessas tecnologias, através de uma revisão da literatura no PudMed. Adicionalmente, fornecemos elementos conceituais para o desenvolvimento de uma estrutura hierárquica sobre a escala na tomada de decisão sobre a leishmaniose no Estado de São Paulo, utilizando Sistemas de Informação Geográfica. Com o apoio das técnicas geoespaciais, desenvolvemos alguns instrumentos para ajudar as comunidades a gerenciar melhor suas áreas de risco. Usamos uma classificação chamada Forças do SIG e da análise espacial em Epidemiologia (SGISSAE). A revisão nos permitiu selecionar 50 artigos publicados no PubMed. Com relação ao desenvolvimento da perspectiva teórica, este artigo pode ajudar a identificar pontos de deficiência em discussões e programas de controle da leishmaniose, o que nos levou a recomendar futuros estudos de delimitação a nível comunitário e a definir ações locais para identificar e gerenciar a doença. No quadro conceptual, os dados ao nível da comunidade permitirão compreender mais amplamente a evolução da distribuição espacial da doença. (AU)

Geospatial and modeling tools for leishmaniasis studies: a review of publication between 2008-2018 / Ferramentas geoespaciais e de modelagem para estudos de leishmaniose: uma revisão de publicação entre 2008-2018

Aspects of how geospatial technologies can be used on visceral leishmaniasis (VL) control programs are discussed. We reviewed a number of papers discussing the usage of those technologies, through a PubMed literature review. Additionally, we provided conceptual elements for a development of a hierarchical scale framework on VL for decision making in São Paulo State, using Geographical Information Systems. Supported by Geospatial Techniques, we developed a view of some instruments for helping communities to better manage their risk areas. We used a classification called Strengths of GIS and Spatial Analysis in Epidemiology (SGISSAE). This review identified 50 papers published in the PubMed. With respect to developing the theoretical perspective, this paper can help to identify points of deficiency in shortage in discussions and leishmaniasis control programs, which led us to recommend future to delimitation studies to at community-based level and to define local actions to identify and manage the disease. In the conceptual framework data at community-based level will allow us to understand more broadly the changing spatial distribution of the disease.

Aspectos sobre como as tecnologias geoespaciais podem ser usadas nos programas de controle da leishmaniose visceral (LV) são discutidos. Nós confrontamos uma série de artigos discutindo o uso dessas tecnologias, através de uma revisão da literatura no PudMed. Adicionalmente, fornecemos elementos conceituais para o desenvolvimento de uma estrutura hierárquica sobre a escala na tomada de decisão sobre a leishmaniose no Estado de São Paulo, utilizando Sistemas de Informação Geográfica. Com o apoio das técnicas geoespaciais, desenvolvemos alguns instrumentos para ajudar as comunidades a gerenciar melhor suas áreas de risco. Usamos uma classificação chamada Forças do SIG e da análise espacial em Epidemiologia (SGISSAE). A revisão nos permitiu selecionar 50 artigos publicados no PubMed. Com relação ao desenvolvimento da perspectiva teórica, este artigo pode ajudar a identificar pontos de deficiência em discussões e programas de controle da leishmaniose, o que nos levou a recomendar futuros estudos de delimitação a nível comunitário e a definir ações locais para identificar e gerenciar a doença. No quadro conceptual, os dados ao nível da comunidade permitirão compreender mais amplamente a evolução da distribuição espacial da doença.

Avaliação da efetividade do uso de coleiras impregnadas com deltametrina no controle da leishmaniose visceral no município de Votuporanga, Estado de São Paulo, Brasil, 2014 ­ 2016 / Evaluation of the effectiveness of using deltamethrinimpregnated collars to control visceral leishmaniasis in the municipality of Votuporanga, State of São Paulo, Brazil, 2014 ­ 2016

O objetivo deste artigo é apresentar os principais resultados do Projeto de Inovação Tecnológica em Saúde realizado entre 2014 e 2015, destacando-se o uso de coleiras impregnadas com deltametrina a 4% em cães em uma região endêmica para leishmaniose visceral (LV), o município de Votuporanga, São Paulo, Brasil. Neste município, anterior à realização do projeto, eram registrados muitos casos caninos e humanos da doença, com elevada taxa de letalidade. Durante o projeto, foram monitorados cerca de 16,5 mil cães, examinadas 25.700 amostras de sangue, considerando-se as perdas e as entradas de novos animais durante os quatro inquéritos sorológicos. Após sua finalização, verificou-se uma diminuição da prevalência e incidência de LV canina, assim como do número de casos humanos. A diminuição dos casos caninos foi correlacionada positivamente aos casos humanos no período de 2011 a 2016 (Correlação de Pearson de 0.914, p-valor<0.05). Além disso, a análise espacial dos resultados corrobora a diminuição ou desaparecimento da concentração de casos caninos e, consequentemente, de fontes e de infecção nas áreas endêmicas à medida que avançaram no tempo e espaço as diferentes etapas de desenvolvimento do projeto. Apesar da drástica redução na incidência da LV canina, ainda permaneceram algumas áreas críticas. Os resultados delineados sugerem a revisão de protocolos e manuais demonstrando a efetividade do uso das coleiras como medida preventiva e potencial no controle da LV. (AU)

This paper aims to present the main results of the Health Technology Innovation Project carried out between 2014 and 2015, which evaluates the use of 4% deltamethrin-impregnated collars in dogs, in an endemic region for visceral leishmaniasis (VL), the municipality of Votuporanga, São Paulo, Brazil. Before this project, Votuporanga had notified canine and human cases of the disease, with a high case fatality rate. We monitored approximately 16.5 thousand dogs, 25,700 blood samples analyzed, considering losses and entrances of new animals during the four serological surveys. After the project, the prevalence and incidence of canine VL decreased as well as the number of human cases. We found a positive correlation between the decrease of infected dogs and human cases from 2011 to 2016 (Pearson correlation of 0.914, p-value <0.05). Furthermore, the spatial analysis of the results indicated areas with canine cases concentration that decreased its intensity or disappeared concomitantly to the project levels in the space-time. Despite the drastic reduction in the incidence of canine VL, some critical areas remain. The current results suggest the review of protocols and manuals demonstrating the effectiveness of the use of collars as a preventive measure and potential in the control of VL. (AU)

Avaliação da efetividade do uso de coleiras impregnadas com deltametrina no controle da leishmaniose visceral no município de Votuporanga, Estado de São Paulo, Brasil, 2014 – 2016 / Evaluation of the effectiveness of using deltamethrinimpregnated collars to control visceral leishmaniasis in the municipality of Votuporanga, State of São Paulo, Brazil, 2014 – 2016

O objetivo deste artigo é apresentar os principais resultados do Projeto de Inovação Tecnológica em Saúde realizado entre 2014 e 2015, destacando-se o uso de coleiras impregnadas com deltametrina a 4% em cães em uma região endêmica para leishmaniose visceral (LV), o município de Votuporanga, São Paulo, Brasil. Neste município, anterior à realização do projeto, eram registrados muitos casos caninos e humanos da doença, com elevada taxa de letalidade. Durante o projeto, foram monitorados cerca de 16,5 mil cães, examinadas 25.700 amostras de sangue, considerando-se as perdas e as entradas de novos animais durante os quatro inquéritos sorológicos. Após sua finalização, verificou-se uma diminuição da prevalência e incidência de LV canina, assim como do número de casos humanos. A diminuição dos casos caninos foi correlacionada positivamente aos casos humanos no período de 2011 a 2016 (Correlação de Pearson de 0.914, p-valor<0.05). Além disso, a análise espacial dos resultados corrobora a diminuição ou desaparecimento da concentração de casos caninos e, consequentemente, de fontes e de infecção nas áreas endêmicas à medida que avançaram no tempo e espaço as diferentes etapas de desenvolvimento do projeto. Apesar da drástica redução na incidência da LV canina, ainda permaneceram algumas áreas críticas. Os resultados delineados sugerem a revisão de protocolos e manuais demonstrando a efetividade do uso das coleiras como medida preventiva e potencial no controle da LV.

This paper aims to present the main results of the Health Technology Innovation Project carried out between 2014 and 2015, which evaluates the use of 4% deltamethrin-impregnated collars in dogs, in an endemic region for visceral leishmaniasis (VL), the municipality of Votuporanga, São Paulo, Brazil. Before this project, Votuporanga had notified canine and human cases of the disease, with a high case fatality rate. We monitored approximately 16.5 thousand dogs, 25,700 blood samples analyzed, considering losses and entrances of new animals during the four serological surveys. After the project, the prevalence and incidence of canine VL decreased as well as the number of human cases. We found a positive correlation between the decrease of infected dogs and human cases from 2011 to 2016 (Pearson correlation of 0.914, p-value <0.05). Furthermore, the spatial analysis of the results indicated areas with canine cases concentration that decreased its intensity or disappeared concomitantly to the project levels in the space-time. Despite the drastic reduction in the incidence of canine VL, some critical areas remain. The current results suggest the review of protocols and manuals demonstrating the effectiveness of the use of collars as a preventive measure and potential in the control of VL.

Geografia e saúde coletiva no Brasil / Geography and public health in Brazil

Resumo Este artigo faz uma reflexão a respeito da importância da geografia para a pesquisa em saúde coletiva no Brasil. Por meio de uma revisão bibliográfica narrativa, o autor descreve os principais temas abordados, agrupando os artigos selecionados de três das principais revistas brasileiras da área - Revista de Saúde Pública, Cadernos de Saúde Pública e Saúde e Sociedade - por escolas do pensamento geográfico. Discute também os avanços alcançados, assim como os desafios teóricos e metodológicos da saúde coletiva com base nos conhecimentos geográficos. Observou-se a importância do geoprocessamento em saúde para estudos de distribuição espacial, principalmente de doenças infectocontagiosas e parasitárias. Da mesma forma, foi possível identificar o crescimento da produção científica em estudos com base no pensamento crítico, com destaque para as publicações recentes na revista Saúde e Sociedade. A comparação dos trabalhos publicados também proporcionou a identificação de desafios metodológicos a serem enfrentados para o estudo da saúde coletiva com embasamento ainda maior de conhecimentos geográficos, como o uso de modelos preditivos e análise de superfícies de tendências, assim como o desenvolvimento de novas ferramentas cartográficas para a compreensão da realidade social em transformação e movimento.

Abstract This article analyzes the importance of Geography for research in Public Health in Brazil. Through a bibliographical narrative review, the author describes the key topics addressed, grouping the selected articles of the most important Brazilian journals in Public Health - Revista de Saúde Pública, Cadernos de Saúde Pública e Saúde e Sociedade - by geographical approaches. It also discusses the progress achieved, as well as the theoretical and methodological challenges of Public Health based on geographical knowledge. The importance of health geoprocessing for spatial distribution studies was observed, especially those on infectious and parasitic diseases. Similarly, it was possible to identify the growth of the scientific production in studies based on critical thinking, especially recent publications in Saúde e Sociedade. The comparison of published works also provided the identification of methodological challenges to be faced for the study of Public Health with an even better basis of geographical knowledge, such as the use of predictive models and trend surface analysis, as well as the development of new cartographic tools to understand social reality in transformation and movement.

[Mapping of information on worker's health]. / O tratamento cartográfico da informação em saúde do trabalhador.

Geographic studies and spatial analyses have been recognized in Brazilian public health papers. It is still, however, very little explored by researchers. In a survey of the leading scientific journals covering issues related to Brazilian worker's health, we found the predominant use of charts and tables as a way to organize and present results with a small number of maps. This survey was conducted by examining all papers published in four journals, covering the period from 1967 to 2009 (Revista de Saúde Pública, Cadernos de Saúde Pública, Revista Saúde e Sociedade, and Revista Brasileira de Epidemiologia). After analyzing the set of papers selected for the study, the papers that used maps were given special attention. The tools of geoprocessing and geostatistics with GIS support, although little used, open new possibilities to use thematic cartography in the field of workers' health. However, it is recommended that editors of scientific journals have detailed technical standards as well as specific reports for the publication of cartographic figures aimed at facilitating the modifications necessary for the improvement of the visual quality of maps and of the spatial correlations through cartography.

The role of the state in public health policies: an overview of the debate on the concept of state and the brazilian case / O papel do estado nas políticas públicas de saúde: um panorama sobre o debate do conceito de estado e o caso brasileiro

This article is the result of a narrative literature review. The objective is to show the development of an overview on the ideological debate on the design of state health policies. We argue that the role of the state in the development of health policy, even under the pressure of the global market, may create alternatives to promote and drive economic and social development, meaning they are not subject to economic constraints imposed by the liberal ideal of market. Here is a part of a theoretical discussion about the construction and presence of the State in Latin America, particularly in Brazil. We take the approaches of the Marxist tradition and liberal to the issue as reference. This discussion allows us to understand the historical role of the state in the maintenance of social policies, specifically health, is an alternative to public control eases the intense capital mobility promoted by economic globalization. In this sense, the theme makes the Brazilian health an important issue of social sciences, why is the historicity of the construction of the Brazilian health system, as a public policy that can mirror the actual reconstruction of the institutional framework of the Brazilian state with the establishment instances of negotiation between the various spheres of power that strengthen the state in this process of democratization of Brazilian society.

Este artigo é resultado de uma revisão bibliográfica narrativa, visando o desenvolvimento de um panorama acerca do debate ideológico sobre a concepção de Estado nas políticas de saúde. Nele, argumentamos que o papel do Estado brasileiro no desenvolvimento da política de saúde, mesmo sob a pressão do mercado globalizado, pode criar alternativas para promover e direcionar o desenvolvimento econômico e social, e que isso não significa submeter-se às restrições econômicas impostas pelo ideal liberal de mercado. Apresentamos parte de uma discussão teórica acerca da construção e presença do Estado na América Latina e, particularmente, no Brasil, tomando como referências as abordagens da tradição marxista e da liberal sobre a questão. Essa discussão permite-nos entender que o papel histórico do Estado na manutenção de políticas públicas sociais, especificamente as de saúde, é uma alternativa para que o controle público amenize a intensa mobilidade de capital promovida pela globalização econômica. Nesse sentido, o tema torna a saúde nacional uma questão importante das Ciências Sociais, por que é na historicidade da construção do sistema de saúde brasileiro, como política pública, que se pode espelhar a própria reconstrução do arcabouço institucional do Estado brasileiro, com a instauração de instâncias de negociação entre as diversas esferas de poder que fortalecem esse mesmo Estado no processo de redemocratização da sociedade brasileira.