The Health Department confirmed three people at the shelter tested positive for the virus among a cluster of 28 people suffering from acute gastrointestinal illness.

Norovirus outbreak strikes evacuees at Pasadena shelter, with three confirmed cases and preventive measures underway.

First came the fires. Then, there was ash and contaminated water. Now, some survivors of the Southern California wildfires are dealing with outbreaks of norovirus and other stomach ailments at a shelter set up to help evacuees.

The Pasadena Public Health Department said they will support the American Red Cross and onsite medical teams following a Norovirus outbreak at the city's evacuation center.