https://www.selleckchem.com/products/gw0742.html Toxoplasma gondii is an obligate intracellular parasite that has a worldwide distribution and can infect almost all warm-blood animals. Serological tests are the main detection methods for T. gondii infection in animals and humans. Little is known of biological behavior, antibody responses, and virulence of T. gondii strains in mice from China. Here we document antibody responses, tissue cyst burden, and mouse virulence of T. gondii strains isolated from different hosts in China. All T. gondii strains formed tissue cysts in the brains of mice and positively correlated with the T. gondii antibody titer (R2 = 0.3345). These results should aid in the diagnosis and characterization of T. gondii isolates.Probstmayria gombensis File, 1976 (Nematoda Cosmocercoidea Atractidae) individuals discharged in the feces of eastern chimpanzees, Pan troglodytes schweinfurthii, in Bulindi, Uganda, were examined morphologically. Adults and fourth-stage larvae, all females, found in the feces, and the third-stage larvae excised from the uterus of the gravid females were described. By close observation of the molting worms, it was considered that the uterine third-stage larvae attain molting phase, and then are laid to become fourth-stage larvae. Nutrients required for larval development in the uterus seem to be supplied by the mother after the eggshell is formed. After some growth in the host intestine, the fourth-stage larvae undergo the final molt to the adult stage. The genital primordium was very small in the early fourth-stage larvae but rapidly developed with embryonation in the pre-molt and molting phases. Such precocity suggests parthenogenetic reproduction without insemination by males. This style may enhance rapid autoinfection in the host intestine under the condition of male worm scarcity. Several ellipsoidal pseudocoelomocytes with granules of unknown function were found ventral to the intestine of the adults, fourth-stage la