International Scientific Forum on Home Hygiene

Home Hygiene & Health

The Leading Source of Scientific, Professional & Consumer Information
International Scientific Forum on Home Hygiene

Home Hygiene & Health

The Leading Source of Scientific, Professional & Consumer Information

Nov 7th: The Norovirus ‘season’ is upon us

A recent recent systematic review of Norovirus risk in high and middle-income countries (BMC Infectious Disease 2015, 15: 425) asserts that there may be as many as 12.5 million infections annually these countries alone, with possibly as many as 2.2 million hospital outpatient visits related to the illness.

Another recent hospital-based study (Clin Infect Dis. first published online October 26, 2015 doi:10.1093/cid/civ747) indicated that 47% of cases shed virus for 21 days (i.e long after symptoms have subsided) and that 11% of asymptomatic unexposed control patients tested positive for Norovirus. This begs the question:“At what stage does a person become ‘non-infectious?’