The city of Calgary has confirmed more than 200 waterborne cases in its water supply.
The water supply in Calgary’s downtown is contaminated with bacteria that have caused the disease, the city said in a statement Monday.
The most common symptoms of the bacteria are diarrhea, vomiting and mild abdominal cramps, according to the statement.
A total of 1,637 people have tested positive for the bacteria, according the statement, which was issued by the city’s water department.
The city has confirmed one case of diarrhoeal colitis, but it’s unclear how widespread the infection is or how it spreads.
Health officials say they have not been able to definitively determine how the bacteria can infect someone’s bloodstream, but have determined that the bacteria is present in drinking water.
The provincial government is working with Alberta Health Services and Environment Canada to develop a more comprehensive response to the problem.
Health Minister Shannon Phillips said it is important for the public to be aware of the disease’s risks.
“There is no vaccine or cure for waterborne colitis,” Phillips said.
“It is an incredibly complicated disease and it takes time to learn how to prevent it.”
The provincial health agency will be releasing the first results of the testing on Tuesday.