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 cholan...

The genus Phytomonas includes parasites that are etiological agents of important plant diseases, especially in Central and South America. These parasites are transmitted to plants via the bite of an infected phytophagous hemipteran. Despite the economic impact of these parasites, many basic questions regarding the genus Phytomonas remain unanswered, such as the mechanism by which the parasites ...

Biological indicators are species that can be employed to monitor environmental quality and ecosystem health. Different groups of organisms such as plants, animals, bacteria and parasites regularly produce certain molecular signal in response to changes in their environmental milieu. Parasites are important tools for providing wealth of information on physicochemical quality, environmental stre...

background entamoeba histolytica/entamoeba dispar and enterobius vermicularis are the major health problems in the developing countries especially in iran. the prevalence of infection is variable among different social groups in the world. objectives since elderly and mentally retarded are high risk group, the present survey was carried out in order to determine the prevalence of intestinal par...

Rabbits are animals affected by many different species of parasites, infection Lead to lower body weight gain compared with non-infected rabbits , while sever death although less likely develop epidemic diseases, but they exposed diseases care and malnutrition, as well parasitic . Turning previous studies that dealt the spread internal parasites in such (Giardia, Cryptosporidium, Eimeria sp., C...

Previous results from our laboratory and from the literature have implicated the expression of ecto-nucleotidases in the establishment of Leishmania infection. In the present study we evaluated the correlation between ecto-nucleotidasic activity and the infectivity of L. amazonensis promastigotes that were kept in culture for short or extended numbers of passages, a condition that is known to d...

Increased number of mast cells at the site of infection is widely regarded as important host defense against parasites. The kinetics of mucosal mast cells and connective tissue mast cells responses were studied in the intestines of 68 female CFLP mice infected with 100 Schistosoma mansoni cercariae. The number of mucosal mast cells and the connective tissue mast cells increased from week 3 and ...

materials and methods random sampling was carried out from january to may 2012. one hundred and forty fecal samples from stray cats were examined using sucrose flotation method. results gastrointestinal parasites were found in 121 of the 140 (86.4%) examined samples. the parasites detected in stray cats were toxocara spp. (45%, 63/140), isospora spp. (21.4%, 30/140), nematode larvae (21.4%, 30/...