The clinical and epidemiological situation of giardiasis (lambliosis) in children of early age was analyzed. Giardiasis was registered more often in children from organized groups. The cause of the disease was non-adherence to the rules of personal hygiene, ongo- and geophagy. Clinically, giardiasis (lambliosis) was manifested by abdominal pain, decreased appetite, nausea and sleep disturbances, and by reactive changes in the pancreas. A positive double laboratory study after treatment may indicate a chronic course of the disease.
