Parasite found in Swedish reservoirs
A new report from the Swedish Institute for Communicable Disease Control shows that more than one out of every tenth test taken from the country's biggest reservoir contained the parasite Cryptosporidium.
Residents in the northern City of Östersund were relieved last week when it was announced that their water will soon be safe to drink after several months of contamination by the microscopic bug Cryptosporidium, which causes violent stomach upsets.
However, 11 percent of tests which the SMI took in the country's five biggest reservoirs between 2003 and 2008 were found to contain the bug. Half of Sweden's drinking water is taken from these reservoirs.
The TT news agency reports that experts agree that microscopic organisms like, parasites, virus and bacteria are the new threat to Sweden's drinking water.