期刊
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
卷 66, 期 1, 页码 18-22出版社
AMER SOC TROP MED & HYGIENE
DOI: 10.4269/ajtmh.2002.66.18
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资金
- NIAID NIH HHS [R01 AI054139, AI 40116] Funding Source: Medline
- NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES [R01AI054139, R29AI040116] Funding Source: NIH RePORTER
In a region of northeastern Amazonia, we find a species previously of minor importance, Anopheles marajoara, to be the principal malaria vector. In a total of five collections during 1996-97 in three replicated sites near the city of Macapa, Amapa state, this species occurs in much greater abundance compared with the presumed vector Anopheles darlingi. Also, a significantly higher proportion of An. marajoara is infected with malaria parasites, determined by the ELISA technique. This appears to be the result of increased abundance of An. marajoara due to alterations in land use, invasion of its primary breeding sites by human immigrants, and its anthropophilic behavior. This discovery highlights one of the challenges of Neotropical malaria control, namely that the targeting of specific vectors may be complicated by a changing mosaic of different locally important vectors and their interactions with human populations.
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