The Association for Professionals in Infection Control and Epidemiology, or APIC, says norovirus is second only to the common cold in frequency, but can be life threatening for the elderly and those with compromised immunity. People can, however, take steps to reduce the spread of norovisuses.

APIC advises to wash hands frequently with soap and water for at least 15 seconds or use hand sanitizer containing at least 60 percent alcohol.

More than 9.2 million cases of noroviruses are food-borne so raw food should be washed before eating. Maintaining a clean household and keeping surfaces clean will reduce risk, APIC says.

If someone does become infected, quarantine the individual, APIC advises. Wait two to three days after symptoms disappear before that person touches food for others.

Norovirus can spread from a contaminated pillowcase to a clean towel in a pile of laundry so disinfect everything the person came into contact with, including light switches, the experts say. Sanitize cleaning rags by washing with hot water and bleach and dry on high, and don't forget to wipe off the bleach bottle, APIC says.