Man biting rate seasonal variation of malaria vectors in Roraima, Brazil
Mem. Inst. Oswaldo Cruz
;
102(3): 299-302, June 2007. mapas, graf, tab
Artigo
em Inglês
| LILACS
| ID: lil-452505
ABSTRACT
Malaria control has been directed towards regional actions where more detailed knowledge of local determinants of transmission is of primary importance. This is a short report on range distribution and biting indices for Anopheles darlingi and An. albitarsis during the dry and rainy season that follows river level variation in a savanna/alluvial forest malaria system area in the Northern Amazon Basin. Distribution range and adult biting indices were at their highest during the rainy season for both An. darlingi and An. albitarsis. During the rainy season the neighboring alluvial forest was extensively flooded. This coincided with highest rates in malaria transmission with case clustering near the river. As the river receded, anopheline distribution range and density decreased. This decrease in distribution and density corresponded to a malaria decrease in the near area. An exponential regression function was derived to permit estimations of An. darlingi distribution over specified distances. Anopheline spatio-temporal variations lead to uneven malaria case distribution and are of important implications for control strategies.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Comportamento Alimentar
/
Mordeduras e Picadas de Insetos
/
Insetos Vetores
/
Anopheles
Limite:
Animais
/
Humanos
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2007
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Brasil
Instituição/País de afiliação:
Fiocruz/BR
/
Universidade Federal de Pernambuco/BR
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