Malaria epidemiology in the State of Piauí, Northeastern Brazil: a retrospective study with secondary data

Abstract

Introduction: Malaria is not considered endemic in State of Piauí. Methods: Malaria epidemiology was examined using surveillance data. Results: During 2002-2013, of the 484 cases of malaria, 217 were classifi ed as probably acquired in Piauí, most frequently in the Campo Largo, Buriti dos Lopes, and Luzilândia municipalities, and 267 were considered probably imported, from the States of Pará, Maranhão, Amazonas, Roraima, and Rondônia. Probably-imported cases occurred throughout the year, while 80.2% of the probably-acquired cases occurred in April-August, peaking at the end of the rainy season. Conclusions: Malaria surveillance should be intensifi ed. Further ecoepidemiological and entomological studies are needed.

Changes in malaria patterns in Brazil over 28 years (1990–2017): results from the Global Burden of Disease Study 2017

“…Piauí state records an average of 40 cases of malaria per year, half of which are probably autochthonous. These autochthonous cases are possibly from regions bordering the state of Maranhão [53].…”

Doenças infecciosas e parasitárias no contexto brasileiro

“…Entretanto, a falta de conhecimento dos profissionais de outras regiões sobre a doença pode aumentar a mortalidade, atrasar o diagnóstico, consequentemente adiando também o tratamento, além de aumentar a prevalência de indivíduos parasistêmicos assintomáticos nessas áreas. Nesse sentido, há uma preocupação quando todos esses fatores são somados a uma região receptiva, o que contribui para conservar a transmissão local da malária, contando com espécies de Anopheles, que são potenciais vetores (NASCIMENTO et al, 2016).…”

“…Além dessas regiões, o Piauí também é, particularmente, receptivo à malária, sendo vulnerável à doença em razão da sua proximidade a regiões endêmicas e do fluxo migratório de trabalhadores para a região Amazônica (NASCIMENTO et al, 2016). As variáveis climáticas apresentam um peso específico em relação à transmissão da doença, uma vez que a variabilidade anual das chuvas proporciona o meio aquático propício ao ciclo de vida do vetor (WOLFARTH-COUTO; FILIZOLA; DURIEUX, 2020).…”

Severe imported malaria in a Brazilian non-endemic region: a permanent alert for travelers and health teams

“…Other regions of the country, including the state of Ceará located in the northeast, are considered non-endemic regions, and the reported cases tend to be imported from endemic regions in the Brazilian Amazonia or from other endemic countries. 4,5 The management approach of malaria in Brazilian non-endemic regions is especially challenging for health teams, due to the plethora of differential diagnoses with acute febrile syndrome, especially arbovirus infections. This fact may contribute to an unfavorable evolution of the disease and its potential progression to severe malaria and death.…”

“…This fact may contribute to an unfavorable evolution of the disease and its potential progression to severe malaria and death. 4,5 We present two cases of severe malaria admitted at a referral hospital for infectious diseases in Fortaleza, Ceará, Brazil.…”