EN
Campylobacter sp. may colonize the intestinal tract of most mammal and bird species. The resultant infections are symptomless or can cause diarrhea. When they concern humans, they are a serious epidemiological problem. In developed countries campylobacteriosis is now one of the most frequent reasons for food-borne diseases and is usually associated with gastroenteritis. In rare cases the infection may lead to complications like septicemia or Gullain-Barre syndrome. Campylobacteriosis is a zoonozis, therefore animal food products are the main source of the infection of Campylobacter for humans. As a zoonozis, in Poland all cases of campylobacteriosis in animals must be registered.