Spatial dependence of malaria epidemics in municipalities of the Brazilian Amazon

Braz, Rui Moreira; Guimarães, Renato Fontes; Júnior, Osmar Abı́lio de Carvalho; Tauil, Pedro Luíz

doi:10.1590/1809-4503201400030004

Cited by 20 publications

(23 citation statements)

References 12 publications

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“…As the result of many efforts to reduce malaria incidence and control the vector (Braz et al 2014), the state of Amazonas showed a 21.7% reduction in the number of epidemic municipalities between 2003-2010. Even with this reduction, the disease incidence remained high.…”

Section: Discussionmentioning

confidence: 99%

Time trends and changes in the distribution of malaria cases in the Brazilian Amazon Region, 2004-2013

Lima

Lapouble

Duarte

2016

Mem. Inst. Oswaldo Cruz

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Recent efforts to reduce malaria incidence have had some successes. Nevertheless, malaria persists as a significant public health problem in the Brazilian Amazon. The objective of this study was to describe changes in malaria case characteristics and to identify trends in malaria incidence in the Brazilian Amazon. This study used data from the Malaria Epidemiological Surveillance and Case Notification Information System from 2004 to 2013. The annual parasite incidence (API) was calculated and joinpoint regression was used to assess the trends in API over time. There was a sharp increase in API in the state of Acre, followed by two periods of decrease. Pará also presented inconsistent decreases over the study period. Amapá, Amazonas, Rondônia, and Roraima showed statistically significant decreases over the period. The sharpest decrease occurred in Rondônia, with a reduction of 21.7% in the average annual percent change (AAPC) (AAPC: -21.7%; 95% confidence interval: -25.4%, -17.8%; p < 0.05). This panorama of malaria incidence highlights the importance of integrating evidence-based malaria surveillance and control. Malaria is highly preventable, and eliminating its transmission should be a goal in coming decades.

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Section: Discussionmentioning

confidence: 99%

Time trends and changes in the distribution of malaria cases in the Brazilian Amazon Region, 2004-2013

Lima

Lapouble

Duarte

2016

Mem. Inst. Oswaldo Cruz

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“…In comparison, in 2013, the peak was detected in April and characterized as an outbreak. These fl uctuations can be explained by variations in the occurrence of rainfall (23) and the introduction of infected individuals into the municipality.…”

Section: Discussionmentioning

confidence: 99%

Basic sanitation, socioeconomic conditions, and degree of risk for the presence and maintenance of malaria in a low-transmission area in the Brazilian Amazon

Monteiro

Chaves

Matos

et al. 2015

Rev. Soc. Bras. Med. Trop.

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“…1 Malaria incidence is influenced by environmental factors (vegetation, climate and hydrology), sociodemographic factors (migration, population density, level of formal education, culture, income and labor activity of the population), biological factors (species and density of mosquitoes of the Anopheles genus, species of Plasmodium and level of immunity in the population) and political-organizational factors (territorial division, organization and effectiveness of health care services, occupation of the land, agricultural enterprises and infrastructure). 2 Efforts to reduce malaria incidence in Brazil date from 1898 through Adolfo Lutz, and 1905 when Carlos Chagas proved household transmission of the disease. In the 1930s the Northeast Malaria Service contributed to eliminating the epidemic in Ceará and Rio Grande do Norte states.…”

Section: Introductionmentioning

confidence: 99%

Análise do processo de eliminação da transmissão da malária na Amazônia brasileira com abordagem espacial da variação da incidência da doença em 2016*

Braz¹,

Barcellos²

2018

Epidemiologia e Serviços de Saúde

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Objective: to identify areas where malaria transmission has been eliminated and levels of malaria incidence variation in the brazilian Amazon in 2016, and to present an indicator of priorities for control actions. Methods: an ecological study was conducted with data from the Malaria Epidemiological Surveillance Information System (Sivep-Malaria); municipalities were classified into three groups-elimination achieved, in the process of elimination and in search of reduction-; a compound indicator was created to stratify municipalities prioritized for control actions. Results: a total of 337 (41.7%) municipalities were found to have achieved elimination, 398 (49.3%) were in the process of elimination and 73 (9.0%) were in search of reduction; the priority indicator created identified 71 municipalities that accounted for 95% of cases. Conclusion: the vast majority of municipalities have already achieved elimination of malaria transmission or are in the process of eliminating transmission; the priority indicator may contribute to targeting malaria control actions.

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Spatial dependence of malaria epidemics in municipalities of the Brazilian Amazon

Abstract: The routine analysis of the epidemic municipalities clusters with spatial and temporal persistence may provide a new indicator of planning and integrated control prioritization, contributing to malaria epidemics reducing in inter-municipal, interstate and borders areas.

Cited by 20 publications

References 12 publications

Time trends and changes in the distribution of malaria cases in the Brazilian Amazon Region, 2004-2013

Time trends and changes in the distribution of malaria cases in the Brazilian Amazon Region, 2004-2013

Basic sanitation, socioeconomic conditions, and degree of risk for the presence and maintenance of malaria in a low-transmission area in the Brazilian Amazon

Análise do processo de eliminação da transmissão da malária na Amazônia brasileira com abordagem espacial da variação da incidência da doença em 2016*

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