How Norovirus Spreads
Norovirus spreads easily through direct contact with an infected person, touching contaminated surfaces, or consuming contaminated food and water. The virus is present in vomit and stool and can be shed by infected people for days after symptoms stop.
Common Transmission Routes
People catch norovirus by touching objects or surfaces with the virus and then touching their mouth. It also spreads through sharing utensils, caring for sick individuals, or eating food handled by someone with poor hand hygiene. Outbreaks are common in hospitals, schools, cruise ships, and daycare centers.
Prevention and Key Facts
Thorough handwashing with soap and water, disinfecting surfaces with bleach-based cleaners, and washing fruits and vegetables help reduce spread. The virus is highly contagious, and only a few particles are needed to cause infection. For more details, see the CDC norovirus prevention page.
