What is Norovirus? Norovirus is a food borne viral infection that was first identified in 1972 following an outbreak in 1968. The virus is quite contagious and has the potential to spread rapidly. The virus is acquired by ingesting material that has been contaminated with infected fluids or liquids. Norovirus Incubation Period: Norovirus has an incubation period of 12-48 hours. This is from the time...