Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
Mem. Inst. Oswaldo Cruz
;
96(2): 179-84, Feb. 2001. tab
Article
in English
| LILACS
| ID: lil-281565
RESUMO
We conducted a survey to determine the vectors of malaria in six localities of Serra do Navio municipality, State of Amapá, from 1990 to 1991. Malaria infection rates of 29.3 percent, 6.2 percent and 20.4 percent were detected by human blood smears in Colônia ægua Branca, Porto Terezinha and Arrependido, respectively. There was no malaria infection detected in Serra do Navio. Fifteen species were identified among 3,053 anopheline mosquitoes collected by human bait and 64.4 percent were identified as Anopheles albitarsis s.l., 16.7 percent An. braziliensis, 9.5 percent An. nuneztovari and 5.8 percent An. triannulatus. An. darlingi, the main vector of malaria in the Amazon region of Brazil, was scare. Using enzyme-linked immunosorbent assay (ELISA), a total positive rate of 0.8 percent (23/2876) was found for six species: fifteen An. albitarsis s.l., four An. nuneztovari, and one of each: An. braziliensis, An. triannulatus, An. oswaldoi and An. rangeli. Nine of 23 positive mosquitoes were infected with Plasmodium malariae, eight with P. vivax VK210, three with P. vivax VK247 and three with P. falciparum. Since An. albitarsis s.l. was collected feeding on humans, was present in the highest density and was positive by ELISA for malaria sporozoites, it probably plays an important role in malaria transmission in this area
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Plasmodium
/
Insect Vectors
/
Malaria
/
Anopheles
Limits:
Animals
/
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2001
Type:
Article
/
Project document
Affiliation country:
Brazil
/
United States
/
United kingdom
Institution/Affiliation country:
Funasa/BR
/
London School of Hygiene and Tropical Medicine/GB
/
Walter Reed Army Institute of Research/US
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