Correlation between positive serology for Plasmodium vivax-like/Plasmodium simiovale malaria parasites in the human and anopheline populations in the State of Acre, Brazil.
Antibodies against the Plasmodium vivax-like/P. simiovale malaria parasite circumsporozoite repeat peptide (APGANQEGGAA)3 were determined by enzyme-linked immunosorbent assay (ELISA) in 120 sera randomly collected in 1994 from adults in 3 localities of the malaria endemic area in the State of Acre, Brazil; antibody was detected in 18 (15%). A 'sandwich' ELISA using monoclonal antibody (mab) Pam 172, directed against the same peptide, was carried out on 1207 Anopheles oswaldoi, 12 of which (1.0%) were positive, and 168 A. deaneorum, 2 of which (1.2%) were positive. This is the first report of serological detection of the P. vivax-like parasite in anophelines and the first report linking anopheline to human serology for this parasite in the same geographical area. It is an additional indication that A. oswaldoi is a malaria vector in Acre.
Marrelli
M T
MT
Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, Brasil.
Branquinho
M S
MS
Hoffmann
E H
EH
Taipe-Lagos
C B
CB
Natal
D
D
Kloetzel
J K
JK
D000328:Adult; D000818:Animals; D000852:Anopheles / Q000469:parasitology; D000913:Antibodies, Protozoan / Q000032:analysis*; D001938:Brazil / Q000453:epidemiology; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007303:Insect Vectors; D016780:Malaria, Vivax / Q000453:epidemiology / Q000276:immunology*; D008297:Male; D010966:Plasmodium vivax / Q000276:immunology*
D000913:Antibodies, Protozoan