Preventing Norovirus Outbreaks infographic
Where do norovirus outbreaks from food contamination happen?
Catering or Banquet facility: 17%
Private Residence: 4%
Health Care Facilities: 1%
Schools and Daycare: 1%
Source: CDC National Outbreak Reporting System, 2009-2012
How contagious is norovirus?
Just a very small amount - as few as 18 viral particles - of norovirus on your food or your hands can make you sick.
In fact, the amount of virus particles that fit on the head of a pin would be enough to infect more than 1,000 people!
Source: Journal of Medical Virology, August, 2008
- Page last reviewed: June 3, 2014
- Page last updated: June 3, 2014
- Content source:
- National Center for Immunization and Respiratory Diseases, Division of Viral Diseases
- Page maintained by: Office of the Associate Director for Communications (OADC)