Prevalence of Toxoplasma gondii and Neospora caninum infections in sheep from Federal District, central region of Brazil.
Serum samples from 1028 sheep were collected from 32 herds within Federal District, in the central region of Brazil. The samples were examined by indirect fluorescent antibody test (IFAT) using sera diluted 1:64 and 1:50 as cut-off values for the detection of antibodies against Toxoplasma gondii and Neospora caninum, respectively. The observed prevalence for T. gondii infection was 38.22% (26.81%<CI 0.95<49.62%), and the titers ranged from 64 to 65536. The observed prevalence for N. caninum infection was 8.81% (7.08%<CI 0.95<10.53%). The titers ranged from 50 to 51200. The reactant sera to both pathogens corresponded to 4.67% of the samples. The risk factors were not determined because of the absence of negative herds for T. gondii and the high proportion of positive herds for N. caninum (87.50%). The prevalence for T. gondii infection was significantly higher among males than in females. The present work is the first report on seroprevalence of T. gondii and N. caninum in sheep from Federal District and shows that infection by both parasites is widespread in the ovine population from this region.
Ueno
Tatiana Evelyn Hayama
TE
Unidade de Pesquisa e Desenvolvimento de Mirassol, Pólo Centro Norte, Agência Paulista de Tecnologia dos Agronegócios, Rodovia Washington Luís, km 445, CEP 15025-990, Caixa Postal 1013, São José do Rio Preto, São Paulo, Brazil. tatianaueno@apta.sp.gov.br
Gonçalves
Vitor Salvador Picão
VS
Heinemann
Marcos Bryan
MB
Dilli
Tales Luís Bezerra
TL
Akimoto
Bruno Minoru
BM
de Souza
Silvio Luís Pereira
SL
Gennari
Solange Maria
SM
Soares
Rodrigo Martins
RM
D000818:Animals; D000913:Antibodies, Protozoan / Q000097:blood; D001938:Brazil / Q000453:epidemiology; D003048:Coccidiosis / Q000453:epidemiology / Q000662:veterinary*; D018688:Neospora; D016036:Seroepidemiologic Studies; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology*; D014122:Toxoplasma; D014124:Toxoplasmosis, Animal / Q000453:epidemiology*
D000913:Antibodies, Protozoan