Ibrahim, B.B., Salama, M.M., Gawish, N.I., Haridy, F.M. (1997)Serological and histopathological studies on toxoplasma Gondii among the workers and the slaughtered animals in Tanta Abattoir, Gharbia Governorate, J Egypt Soc Parasitol. , 27(1), pp. 273-8.