[Cross-sectional study of intestinal parasites and Chagas' disease in the Municipality of Novo Airão, State of Amazonas, Brazil].
A cross-sectional study was performed on the residents of one in every ten households in the town of Novo Airão, in the northern meso-region of the State of Amazonas, 250 kilometers from Manaus by riverboat. A family cluster sample of 89 dwellings was studied. A stool sample was requested from each of the inhabitants for examination using the Lutz sedimentation and Baermann-Moraes-Coutinho techniques, and blood was taken by venous puncture for Trypanosoma cruzi Elisa antibody testing and immunofluorescence. From a total of 316 stool samples, 87.6% had one or more parasites: Ascaris lumbricoides (35.1%), Entamoeba histolytica (29.1%), Giardia lamblia (17.4%), and other parasites with lower prevalence rates. These results were directly correlated with lack of sanitation and clean water supply. Of the 346 sera examined, 16 (4.6%) were reactive to T. cruzi antibodies, but only three showed a correlation between this result and human contact with wild triatomines, known locally as "piassava lice".
Boia
M N
MN
Departamento de Medicina Tropical, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, C. P. 926, Rio de Janeiro, RJ 21045-900, Brasil.
da Motta
L P
LP
Salazar
M D
MD
Mutis
M P
MP
Coutinho
R B
RB
Coura
J R
JR
D000293:Adolescent; D000328:Adult; D000368:Aged; D000818:Animals; D001938:Brazil / Q000453:epidemiology; D014355:Chagas Disease / Q000453:epidemiology* / Q000469:parasitology; D003430:Cross-Sectional Studies; D056890:Eukaryota / Q000302:isolation & purification; D005243:Feces / Q000469:parasitology; D005260:Female; D006376:Helminths / Q000302:isolation & purification; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology* / Q000469:parasitology; D008297:Male; D008875:Middle Aged; D012499:Sanitation; D011795:Surveys and Questionnaires; D014881:Water Supply / Q000032:analysis