The Minnesota Department of Health reported the number of cases in the Legionnaires' outbreak in Hopkins to 23, according to an article on the Becker's Infection Control and Clinical Quality website.
Health officials have identified seven locations with one or more cooling towers as potential sources of the outbreak.
Samples from the cooling towers have been collected and are being tested for Legionella bacteria.
"MDH will not consider the investigation complete until all nearby cooling towers that could be a source of the Hopkins illnesses are identified and remediated, and no additional cases are identified," said the department in a release.
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