Fallahi Sh1, Badparva E1, Nahrovanian H2, Chegeni Sharafi A3, Ebrahimzadeh F4 1. Instructor, Department of parasitology, Faculty of medicine, Lorestan University of medical sciences 2. PhD, Pasteur institute of Iran. 3. Master of science, parasitology 4. Instructor, Department of statistic, Faculty of health, Lorestan University of medical sciences Abstract Background: Intestinal...

Neospora caninum (N. caninum) and Toxoplasma gondii (T. gondii) are both obligate intracellular protozoan parasites, which have gained considerable attention because of their role in bovine abortion. This study aimed to detect anti-N. caninum and -T. gondii in bulk milk of dairy cattle, Mashhad, Iran. The bulk milk samples were collected from July 2014 to June 2015 and analyzed for anti-N. cani...

there have been a few reports from iran concerning infection by cryptosporidium species, but they have referred particularly to infection in animals and their handlers. this study of infection in humans was carried out over a two year period in a large urban area in a cold region of western iran. 554 stool specimens were examined with modified ziehl - n eelson (mzn) staining for cryptosporidium...

Resources allocated to defence against parasites are not available for investment in other functions such as growth or reproduction, resulting in trade-oVs between diVerent components of an organism’s Wtness. In balancing the cost of infection and the cost of immunity, selection should only favour individuals that allocate more energy to resistance and immune responses in populations regularly ...

A model of skin infection with Leishmania amazonensis with low doses of parasites is compared to infection with high doses of L. amazonensis and low and high doses of Leishmania major. C57BL/6 mice were infected with 10³ or 10(6) parasites in the ear and the outcome of infection was assessed. The appearance of lesions in mice infected with 10³ parasites was delayed compared to mice infected wit...

biliary liver flukes are common parasites in some regions of the world where consumption of raw fresh-water fish is a cultural practice. clonorchis sinensis and opisthorchis species are the major biliary liver flukes associated with human disease. some of these parasites are highly associated with cholangiocarcinoma. this report describes a clinically and epidemiologically unsuspected liver flu...

A survey on myxosporean parasites of freshwater fishes from Mesopotamian part of Iran (south western part of the country, Khuzestan Province) was carried out. Some 280 individuals belonging to 14 different species were examined the prevalence of myxosporean parasites, morphology of the spores, plasmodial development, the infective site, and characteristics of the cyst location using the histolo...

In this study, 180 aut of 986 primary school children of Absard were evaluated for the presence of intestinal parasitic infections. Direct smears of one stool sample for each public were used in this study. The samples were selected from one urban and two rural areas. Afghan immigrants were also included in the study. Among study population, 69 % were infected by intestinal parasites. The most...

Intense selection pressure from parasites on free-living animals has resulted in behavioral adaptations that help potential hosts avoid sources of infection. In primates, such “behavioral immunity” is expressed different contexts and may vary according to the ecology host, nature infectious agent, individual itself. this study, we investigated whether avoidance contaminated food was associated ...