In subjects with positive giardiasis tests examinations of contacts were made not only in all members of the family but also in dogs and cats living with them in the same household. Attention was paid to the possible transmission of giardias. A total of 174 families were examined, i.e. 1140 subjects incl. 156 positive ones. Of 123 examined dogs 9 were positive and of 56 cats 8 were positive. Forty-three dog keepers were negative, of their 222 dogs 60 were positive. Although no association was proved between the infection of domestic animals and humans in the examined group, it is recommended to treat not only humans but also domestic animals.

Krajská hygienická stanice Brno