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Atypical Toxoplasma gondii genotype in feral cats from the Fernando de Noronha Island, northeastern Brazil

2016; Elsevier BV; Volume: 224; Linguagem: Inglês

10.1016/j.vetpar.2016.05.023

1873-2550

Renata Pimentel Bandeira de Melo, Jonatas Campos de Almeida, Débora Costa Viegas de Lima, C.M. Pedrosa, Fernando Jorge Rodrigues Magalhães, Adrianne Mota de Alcântara, Luiz Daniel de Barros, Rafael Felipe da Costa Vieira, João Luís Garcia, Rinaldo Aparecido Mota,

Rabies epidemiology and control

Toxoplasma gondii isolates from Brazil have a different phenotypic and genotypic pattern, with predominance of virulent isolates and recombinant genotypes, compared to the North Hemisphere. Considering that a new T. gondii genotype, non-pathogenic to mice, was previously identified from free-range chickens from the Fernando de Noronha Island, Brazil, this study aimed to identify genotypes of this parasite in tissue samples of feral cats (Felis catus) from this Brazilian Island. Anti-T. gondii IgG antibodies were detected in 18/31 (58%) feral cats. Two non-virulent T. gondii isolates were obtained by mouse bioassay. Genotyping was performed by PCR-RFLP using 10 genetic markers (SAG1, SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, PK1, L358 and Apico) and an atypical strain of T. gondii (ToxoDB #146) was identified. This is the first report of this genotype in feral cats.