Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Zoonotic Enterocytozoon bieneusi genotypes found in brazilian sheep

2016; Elsevier BV; Volume: 107; Linguagem: Inglês

10.1016/j.rvsc.2016.06.006

1532-2661

Vagner Ricardo da Silva Fiúza, Carlos Wilson Gomes Lopes, Rachel Ingrid Juliboni Cosendey, Francisco Carlos Rodrigues de Oliveira, Ronald Fayer, Mónica Santı́n,

Mycobacterium research and diagnosis

The presence of Enterocytozoon bieneusi in sheep has been reported in only three countries worldwide. The present study has found E. bieneusi in Brazilian sheep for the first time; in 24/125 (19.2%) fecal samples by PCR and on 8/10 (80%) farms from three diverse locations. A significantly greater number of lambs (34.1%) were found infected than older sheep (11.1%) (P = 0.0036); most of the lambs were less than 6 months of age. Farms with an intensive production system had a lower infection rate (10.5%) of infection than semi-intensive farms (23%), but this difference was not statistically significant. Sequencing analysis of the internal transcribed spacer (ITS) region of the rRNA gene revealed four known E. bieneusi genotypes (BEB6, BEB7, I, and LW1) and two novel genotypes (BEB18 and BEB19). Genotypes LW1 and BEB19 clustered within designated zoonotic Group 1 while genotypes BEB6, BEB7, I, and BEB18, and clustered within Group 2. BEB6 was the most prevalent (45.8%), followed by BEB7 (33.3%). Genotypes BEB6, I, and LW1 are zoonotic and can pose a risk to human health for immunocompromised individuals.