[Incidence of Giardia intestinalis in family environments in the light of epidemiologic studies]. / Wystepowanie Giardia intestinalis w srodowiskach rodzinnych w swietle badan epidemiologicznych.

Coproscopy parasitological studies were carried out in family environments. Samples of feces were taken three times from 1728 persons (400 families) from urban and rural environments in south-eastern regions of Poland. The general extensity of giardiasis amounted to 39.6% and was higher in urban families (average 41.3%) than in those inhabiting rural areas (average 36.6%). The giardiasis dominated in children from 1 to 4 years (average more than 78% infected), especially in urban areas (extensity of infection 80.1%). It was also frequent in persons of male sex.