الفهرس 
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Abstract
Neospora caninum and Toxoplasma gondii are related coccidian protozoan
parasites capable of infect variety of warm-blooded animals, including cattle and water
buffaloes. The high prevalence of N. caninum and T. gondii infection in bovine, not only
affects the development of the livestock industry, but is also an important infectious source
for human toxoplasmosis.
High distribution of the water buffalo and cattle in Menoufia province, and the
limited information on the seropositivity of these parasites in Menoufia province, was the
main reason to perform the present study. 506 blood samples from cattle (262) and water
buffaloes (244) were collected from open public markets in Qewaisna and Birket Al Saba,
Menoufia Province. Determination of N. caninum and T. gondii specific (IgG and IgM)
antibodies performed using TgSAG2 and NcSAG1 based-ELISA.
In cattle from Qewaisna and Birket Al Saba regions of Menoufia Province, Egypt
the overall prevalence of T. gondii was 1.91% and 3.05% for acute infection (IgM) and
chronic infection (IgG), respectively, in Menoufia Province. Seropositivity of N. caninum
for IgM and IgG antibodies was 12.21% and 14.89%, respectively, with a significant
increase in the IgM level in the area of Qewaisna (16.11%) compared to Birket Al Saba
(7.08%) area.