A class that has been on kosläpp where eight out of twenty-three children and a teacher have become ill with severe abdominal pain, vomiting and watery diarrhea, said Deputy County Medical in West Bengal, Eva Lind houses Combos.

The disease is caused by the parasite Cryptosporidium that five years ago affected tens of thousands of people in Östersund.

According to the infectious disease physician’s theory is that the close encounter with calves that children become infected.