[Role of dogs in the spread of Lamblia (Giardia) intestinalis infection].

Above 3,300 cases of human lambliasis have been annually notified in Perm since 2004 as shown by the data of the Board of the Federal Service for Surveillance on Consumer Rights Protection. Serological studies show that 22.29% of the Perm dogs have antibodies against Lamblia intestinalis antigens. Social (domestic and working) dogs have been found to be vectors of Lamblia in the urban population. Excretion of Giardia sp. cysts has been recorded in 0.28% of the domestic dogs. Overall, dogs are of no epidemiological value in spreading human lambliasis.