background: limiting dilution assay is considered as the gold standard method for quantifying the number of parasites in the animal model of leishmania infection. nowadays, real-time pcr is being increasingly applied to quantify infectious agents. in the present study , a real-time pcr assay was developed to estimate para­site burdens in lymph nodes of leishmania major infected balb/c mice. enu...

background: for a long time, intestinal parasite infections are among the major problems of public health in iran. our aim was epidemiological studies on the frequency of intestinal parasites in patients re­ferred to three hospitals in tehran during 2007-2008. methods : during 2007-2008, by simple random selection, 1000 stool samples were collected from mi­lad, hazrat-e-rasoul and shahid fahmid...

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...

Intestinal parasitic infections, caused by helminths and protozoa, are globally distributed major causes of worldwide morbidity. The gut microbiota may modulate parasite virulence host response upon infection. complex interplay between parasites the is poorly understood, partly due to sampling difficulties in remote areas with high burden. In a large study children Guinea-Bissau, we found preva...

The spleen is the major organ in which T cells are primed during infection with malaria parasites. However, little is known regarding the dynamics of the immune responses and their localization within the splenic tissue during malaria infection. We examined murine CD8+ T cell responses during infection with Plasmodium berghei using recombinant parasites expressing a model antigen ovalbumin (OVA...

during 1980-82, a total number of 4143 stool samples, from 2332 males and 1811 females, referred to the central laboratory of the school of public health, were examined for intestinal parasites. all the specimens were examined for intestinal parasites. all the specimens were examined by formol-ether concentration and wet-mount (ringer solution) techniques. the main prevalent pathogenic parasite...

Visceral pentastomiasis is usually found incidentally during surgery. We describe a case of visceral pentastomiasis discovered during inguinoscrotal hernia surgery for a man from Benin, Africa. Because surgical removal of nymphs is needed for symptomatic patients only, this patient's asymptomatic pentastomiasis was not treated and he recovered from surgery uneventfully.

Three clonal strain types (I, II, and III) of Toxoplasma gondii predominate worldwide. The outcome of infection in mice is highly dependent on the parasite genotype with type I strains being uniformly virulent, while types II and III are nonvirulent. Interactions with the innate immune response play a major role in determining the outcome of infection in the murine model. To identify key early ...

Abstract Copepods of the genera Calanus and Pseudocalanus are important components Arctic marine ecosystems. Despite key roles these zooplankters, little is known about organisms they interact with most intimately, their parasites symbionts. We applied metabarcode sequencing to uncover eukaryotic present within two copepod from three areas around high archipelago Svalbard. Ten distinct parasite...