Ecological and Epidemiological Situation of Toxocariasis in Russia

The article describes the epidemiological situation of toxocariasis in Russia, transplacental transmission of larvae cysts to newborn, Toxocara canis infestation of final hosts. Data on soil infestation with toxocara eggs are summarized. We have detected an unusual localization of mature T.canis female in the dog's lung. Canines form natural synanthropic foci, biological activity of which complicates the epizootological situation of toxocariasis in Russia.