ROCKVILLE, Md. -- Montgomery County health officials are warning residents about an outbreak of the highly contagious norovirus.
Outbreaks have been reported at two nursing homes and a business luncheon, county health department spokeswoman Mary Anderson said Tuesday. A group of county residents also became ill after attending a wedding in Florida, where they likely were infected, Anderson said.
The virus has affected about 75 people since mid-November.
Norovirus spreads by the air when people vomit or by contaminated hands that aren't properly cleaned after changing diapers or using bathrooms, officials said. Its symptoms include nausea, vomiting, chills and a low-grade fever.
Health officials are urging county residents to practice good hygiene.
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