[Epidemiology of toxoplasmosis in Chile. V. Prevalence of the infection in humans and domestic and wild animals, studied by indirect hemagglutination reaction, in the Juan Fernández Archipelago. V Region].
A serological study utilizing an indirect hemagglutination test (IHAT) for toxoplasmosis was carried out in 222 humans and in 58 domestic animals (31 dogs, Canis familiaris; 27 cats, Felis catus), and in 62 wild mammals distributed into 50 rabbits, Oryctolagus cuniculus and 12 goats, Capra hircus. This survey was performed in the Juan Fernández Archipelago, formed by three islands: Robinson Crusoe, Santa Clara and Alejandro Selkirk (80 degrees 47'-78 degrees 47' west long., and 33 degrees 36'-33 degrees 47' south lat.). Blood samples were collected in filter paper and IHAT with titres greater than or equal to 1:16 were considered positive. This survey showed a prevalence of 42.3% in humans with no difference between men (43.0%) and women (41.5%). A high prevalence was found within groups of young individuals (0 to 19 years old), men and women. Regarding the domestic animal population, 44.8% resulted positive, distributed as follows: dogs 9.7% and cats 85.2%. Twenty one percent of wild animals were positive, distributed as follows: rabbits 8.0% and goats 75.0%. The global prevalence of toxoplasmosis in animals (domestic and wild) was 32.5%. All titres in humans and animals were less than or equal to 1:512. Toxoplasmosis is well extended among the human and animal population of the Juan Fernández Archipelago.
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D000293:Adolescent; D000328:Adult; D000818:Animals; D002415:Cats; D002648:Child; D002675:Child, Preschool; D002677:Chile; D004285:Dogs; D005260:Female; D006041:Goats; D006386:Hemagglutination Tests; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011817:Rabbits; D014123:Toxoplasmosis / Q000175:diagnosis / Q000453:epidemiology*; D014124:Toxoplasmosis, Animal / Q000453:epidemiology
Epidemiología de la toxoplasmosis en Chile. V. Prevalencia de la infección humana y en mamíferos domésticos y silvestres, estudiadada mediante reacción de hemaglutinación indirecta, en el Archipiélago de Juan Fernández. V Región.