Prevalence of <Emphasis Type="Italic">Toxoplasma gondii</Emphasis> and <Emphasis Type="Italic">Neospora caninum</Emphasis> infections in sheep from Federal District,central region of Brazil |
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| Authors: | Tatiana Evelyn Hayama Ueno Vitor Salvador Picão Gonçalves Marcos Bryan Heinemann Tales Luís Bezerra Dilli Bruno Minoru Akimoto Silvio Luís Pereira de Souza Solange Maria Gennari Rodrigo Martins Soares |
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| Institution: | 1.Unidade de Pesquisa e Desenvolvimento de Mirassol, Pólo Centro Norte,Agência Paulista de Tecnologia dos Agronegócios,S?o José do Rio Preto,Brazil;2.Faculdade de Agronomia e Medicina Veterinária,Universidade de Brasília,Brasília,Brazil;3.Escola de Veterinária, Universidade Federal de Minas Gerais,Belo Horizonte,Brazil;4.Faculdade de Medicina Veterinária e Zootecnia,Universidade de S?o Paulo,S?o Paulo,Brazil |
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| Abstract: | 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. |
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| Keywords: | Brazil Indirect fluorescent antibody test Neospora caninum Prevalence Sheep Toxoplasma gondii |
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