[Prevalence and diagnosis of lambliasis in Perm region].

The prevalence and its specific features of Lamblia invasion in children in some districts of the Perm Region, which differ in the nonstandard quality of drinking water samples are described. For the specific diagnosis of giardiasis, a serological study of the population was made by enzyme immunoassay determining specific Lamblia antibodies in the serum. The authors proposed a questionnaire that may suspect giardiasis in a child. The data obtained from the questionnaire study correlate with the positive results of enzyme immunoassay in 47.5% of cases. The clinical picture of Lamblia invasion in the examinees corresponds to the data available in the literature on the course of giardiasis.