Undated (Learfield)  --  Minnesota health officials say more than 60 cases of Legionnaire's Disease have been reported this year. That's above the state's average of between 50 and 60 cases annually, and officials say there's been an increase nationally as well.

Minnesota Department of Health Lab
Minnesota Department of Health

Five new cases of Legionnaire's have been confirmed in Hopkins -- and all involve people older than 50 who were taken to hospitals for treatment. Legionnaire's bacteria is normally found in buildings with complex water systems, and experts say the disease cannot be spread by human contact.

Hopkins officials say the city's water system is safe.