Study on tissue and blood protozoa of camels in southern Iran

摘要

Three hundred and thirty three sick camels from different parts of Boushehr province, Iran, were strictly observed for general conditions. They did not indicate severe clinical symptoms other than occasional slight anaemia, mild fever and mild emaciation. From 333 blood samples thin, thick and wet smears were prepared. Lymph node biopsy smears were also taken. The smears were carefully observed directly and indirectly by microscope. The blood samples were inoculated into white rats by intraperitoneal route. They were kept under strict control for a period of 30 days. The studies indicated that 32 camels were infected with Trypanosoma evansi. The infectivity rate was not a function of any age group. It was assumed that the rate of infectivity amongthe females is more than males. The spread of infection during winter and spring was less than that during summer and autumn. No erythrocytic and schizont forms of genus Theileira and Babesia were observed. The studies indicated that 2-3 percent of camels were also infected with Dipetalonema evansi.