Revista Brasileira de Parasitologia Veterinária (Dec 2023)

Detection of anti-Trypanosoma spp. antibodies in cattle from southern Brazil

  • Gisele Vaz Aguirre Samoel,
  • Fagner D’ambroso Fernandes,
  • Isac Junior Roman,
  • Bibiana Teixeira Rodrigues,
  • Luiz Claudio Miletti,
  • Patrícia Bräunig,
  • Renata Rojas Guerra,
  • Luís Antônio Sangioni,
  • Juliana Felipetto Cargnelutti,
  • Fernanda Silveira Flores Vogel

DOI
https://doi.org/10.1590/s1984-29612024002
Journal volume & issue
Vol. 33, no. 1

Abstract

Read online

Abstract Bovine trypanosomosis, caused by Trypanosoma vivax, is a disease that originated in Africa and currently affects cattle in several South American countries, including almost all Brazilian states. Despite the reports on T. vivax infection in southern Brazil, data on its circulation status is currently unavailable. In this study, we aimed to detect anti-Trypanosoma spp. IgG antibodies in cattle from Rio Grande do Sul and suggest areas with T. vivax transmission risk. A total of 691 serum samples from cattle in the intermediate regions of Rio Grande do Sul were analyzed using indirect immunofluorescence assay (IFA). The overall seroprevalence of anti-Trypanosoma antibodies in cattle was 24.6% (170/691). The detection rate ranged from 0-37.3%, with a high prevalence in the intermediate regions of Ijuí (37.3%), Uruguaiana (30.7%), and Passo Fundo (28.9%). Thus, these regions were suggested as possible bovine trypanosomosis risk areas due to the high seroprevalence. This is the first serological study to determine Trypanosoma spp. infection status in cattle from Rio Grande do Sul, providing data on the epidemiology of trypanosomosis in the state.

Keywords