This work aims to compare the effects of acute or chronic infections with the T. cruzi genotypes TcI (X10 strain), TcII (Y strain) and TcVI (Tulahuen strain) on fertility, gestation, pup growth and the possible vertical transmission of parasites in BALB/c mice. The occurrence of congenital infection was evaluated by microscopic examination of blood and/or qPCR on blood and heart in newborn pups...

A host-parasite model is proposed that incorporates a nonlinear incidence rate. Under the influence of multiple infectious attacks, the model admits bistable regions such that the infection dies out if initial states lie in one region, and the population and parasites coexist if initial states lie in the other region. It is also found that parasites can drive the population to extinction for su...

background: the aim of this study was to detect the occurrence of parasites in fish in armand river, chaharmahal va bakhtyari province regarding the importance of native fish population in the river. methods: the occurrence of parasites was investigated in 6 native fish ( capoeta capoeta, c. damas­cina, c. aculeta, barbus barbulus, b. grypus and glyptothorax silviae ) collected from the current...

This study was performed to determine infection and pathologies of the parasites (Myxobolus cyprini Lamproglena pulchella) on three different fish species (Barbus lacerta, Capoeta trutta umbla) caught in Wildlife. The for this were transported laboratory accordance with ethical rules investigated parasites. According results, two parasite identified. Myxobolus found soft tissue pectoral fins as...

The most critical bottleneck in the generation of recombinant Plasmodium berghei parasites is the mandatory in vivo cloning step following successful genetic manipulation. This study describes a new technique for rapid selection of recombinant P. berghei parasites. The method is based on flow cytometry to isolate isogenic parasite lines and represents a major advance for the field, in that it w...

Question: Can parasites stabilize host-population dynamics and thereby reduce the risk of host extinction? Model: We analysed a discrete-time model of logistic growth in an annual, asexual host population. Infection was assumed to reduce host fecundity, but not host survival. Using simulations, we determined whether parasites stabilized or destabilized host-population dynamics. We calculated th...

Microsporidia are intracellular parasites that cause opportunistic infections in humans of various immunological status. Only a few case reports exist on microsporidial infection in solid organ transplant recipients worldwide. The presented study demonstrates the first case in Poland of Enterocytozoon bieneusi infection in a liver transplant patient. Parasites were diagnosed in stool samples us...

Some parasites can be transferred from fish to human via eating of contaminated meat and make serious problems in consumers. In the present study zoonotic parasites of abdominal cavity in pike-perch, Sander lucioperca, in south eastern part of the Caspian Sea have been surveyed. In this regard, 30 fish were caught by purse seine net and abdominal cavity, digestive tract and other organs (kidney...

Introduction: Intestinal parasitic infections are very common in developing countries and affect mostly children. Day care centers are places where children are more susceptible to acquire intestinal parasites. Material and Methods: This cross-sectional study was conducted to determine the prevalence of intestinal parasites among children who attend to day care centers in Yazd city. Eighty hu...