Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil

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%, 6.2% and 20.4% were detected by human blood smears in Colônia Água Branca, Porto Terezinha and Arrependido, respectively. T...

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Main Authors: MM Póvoa, RA Wirtz, RNL Lacerda, MA Miles, D Warhurst
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2001-02-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000200008
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author MM Póvoa
RA Wirtz
RNL Lacerda
MA Miles
D Warhurst
author_facet MM Póvoa
RA Wirtz
RNL Lacerda
MA Miles
D Warhurst
author_sort MM Póvoa
collection DOAJ
description 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%, 6.2% and 20.4% were detected by human blood smears in Colônia Água 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% were identified as Anopheles albitarsis s.l., 16.7% An. braziliensis, 9.5% An. nuneztovari and 5.8% 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% (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.
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spelling doaj.art-2fc77770acc94142b55dc0de7702de622023-08-02T09:15:34ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602001-02-0196217918410.1590/S0074-02762001000200008Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, BrazilMM PóvoaRA WirtzRNL LacerdaMA MilesD WarhurstWe 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%, 6.2% and 20.4% were detected by human blood smears in Colônia Água 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% were identified as Anopheles albitarsis s.l., 16.7% An. braziliensis, 9.5% An. nuneztovari and 5.8% 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% (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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000200008mosquitoAnophelesmalaria vectorPlasmodiumBrazil
spellingShingle MM Póvoa
RA Wirtz
RNL Lacerda
MA Miles
D Warhurst
Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
Memorias do Instituto Oswaldo Cruz
mosquito
Anopheles
malaria vector
Plasmodium
Brazil
title Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
title_full Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
title_fullStr Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
title_full_unstemmed Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
title_short Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil
title_sort malaria vectors in the municipality of serra do navio state of amapa amazon region brazil
topic mosquito
Anopheles
malaria vector
Plasmodium
Brazil
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762001000200008
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