State and local health officials are investigating cases of Legionnaires ' disease at the Albert Lea senior living and care facility.
Two cases have been reported at the St. John's Fountain Lake facility.
The Minnesota Department of Health says the first resident's symptoms began in early June and the second's were just reported late last week.
MDH says it is working with the facility to identify a possible source.
In the meantime, protective measures have been put in place for residents, visitors and workers to prevent the further spread of the disease.
Legionnaires' disease is a type of bacterial pneumonia that can be severe. Symptoms include fever, fatigue, loss of appetite and coughing.
It's spread by inhaling aerosols from water sources containing  Legionella bacteria.