Effect of topical agents on cercariae of Schistosoma mansoni.

DEET (N, N-diethyl-m-toluamide) is one of the reliable and most widely used insect repellents. The present work was planed to evaluate the effect of free DEET, controlled release DEET and white precipitate ointment on the viability of cercariae of S. mansoni in-vitro.

Detection of trichomoniasis in vaginal specimens by both conventional and modern molecular tools.

Out of 23 symptomatic cases 21 specimens were positive for T. vaginalis by one or more methods. 21 were positive by PCR (91.

Influence of temperature and salinity on the viability and infectivity of Giardia lamblia and Cryptosporidia parvum.

The present work was designed to assess the effect of different degrees of temperature and salinity on the viability and infectivity of G. lamblia and C. parvum at different storage time.

Human pathogenic protozoa in bivalves collected from local markets in Alexandria.

Bivalves are filter feeders concentrating pathogens from waters and are often eaten raw. Two species, Caelatura Iaronia pruneri and Donax trunculus limiacus commonly known as Gandofli and Om el Kholool respectively were examined. Shellfish were collected from markets in Alexandria to detect any human pathogenic protozoa in them.

Vaccination against congenital toxoplasmosis.

Different types of Toxoplasma gondii vaccines were evaluated using parasitological and histopathological means to induce immunity in Swiss pregnant mice and their pups against the challenge with virulent RH strain. Immunization was performed before mating by using live cyst vaccines (LCV), LCV-IL-2 combination, irradiated cyst vaccine (ICV) and ICV-IL-2 combination. It was demonstrated that pre-immunization with the current vaccines offered significant protection of both dams and pups.