Cumulative incidence and spatial distribution of dogs exposed to Toxoplasma gondii

Autor: Alisson Vinícius Gimenes Olbera, Felipe Fornazari, Selene Daniela Babboni, Rodolfo Santos Rossi, Anaiá Paixão Sevá, Giulia Soares Latosinski, Mariana Aimee Ramos Xavier da Silva, Jose Rafael Modolo, Helio Langoni
Jazyk: English<br />Spanish; Castilian<br />Portuguese
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Zdroj: Revista Brasileira de Parasitologia Veterinária, Vol 29, Iss 2
Druh dokumentu: article
ISSN: 0103-846X
1984-2961
DOI: 10.1590/s1984-29612020025
Popis: Abstract Toxoplasma gondii is one of the most important protozoa parasites worldwide. Although many seroprevalence studies have been performed in domestic and wild species, data on the cumulative incidence and the spatial distribution of T. gondii in animals are extremely scarce. In the present study, dogs from Botucatu municipality, São Paulo state, were followed for one year and their blood samples were collected on three moments: days 1, 180, and 360. The sera were submitted to the immunofluorescence antibody test (IFAT) to detect IgG antibodies to T. gondii. Age and sex were compared with IFAT results through statistical tests. Spatial analysis was used to detect clusters of seropositive dogs. Among the 350 dogs that were seronegative on day 1, 53 became seropositive in subsequent samplings; thus, cumulative incidence was 15.1% exposed dogs/year. Age and sex were not associated with serological results. The spatial analysis revealed that seropositive dogs were distributed in all the studied areas, with a significant cluster in a zone with poor sanitary conditions and low socioeconomic status. T. gondii is frequent and widely distributed in the urban area of Botucatu, and impoverished areas are possibly associated with high levels of environmental contamination by this parasite.
Databáze: Directory of Open Access Journals
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