It’s winter and the norovirus is spreading across the country again. There have been widespread reports of school closings from the nasty illness, also known as the the winter vomiting disease, the stomach bug or stomach “flu,” Today reports.
However, norovirus is not related to influenza. It’s a notoriously contagious and difficult-to-prevent gastrointestinal virus. If someone near you is sick with norovirus, prepare yourself.
Norovirus acts quickly
Symptoms can come on 12 to 48 hours after exposure. It can make you feel extremely sick with diarrhea and vomiting, many times a day.
Norovirus makes you vomit, violently
Norovirus is commonly known as stomach flu or winter vomiting disease. Both infections cause abdominal cramps and diarrhea, and often fever.
High numbers point to norovirus
When norovirus hits, it often causes huge outbreaks — for instance, 700 people sickened on the Royal Caribbean ship Explorer of the Seas in January 2014 or 142 people infected on a Royal Norwegian cruise ship. E. coli outbreaks often play out over a longer period of time and the numbers reported are usually much
Each year, norovirus makes 70,000 people sick enough to go to the hospital. As many as 800 people die, mostly elderly patients who become dehydrated. It’s the most common cause of foodborne-disease outbreaks, CDC says.
Researchers who put together a “vomiting machine” demonstrated one reason why. The violent vomiting that marks norovirus sends small particles of that vomit into the air, carrying pieces of virus.