Skellefteå tests for parasite in tap water
Tests from the largest water treatment plant, Abborren, in the northern city of Skellefteå have come back showing no signs of the parasite, Cryptosporidium.
But the Swedish Institute for Communicable Disease Control says that it's still likely that the stomach bug is spreading via tap water, since many have gotten sick in a short time.
The Institute plans to continue analyzing samples.
There are fears that hundreds of people in Skellefteå may have been infected with the same bug that made the water in the central city of Östersund undrinkable for months.