noroviruses genus norovirus family caliciviridae are a group of related singlestranded rna nonenveloped viruses that cause acute gastroenteritis in humans norovirus was recently approved as the official genus name for the group of viruses provisionally described as norwalklike viruses nlv, norovirus was first described by zahorsky as winter vomiting diseases norovirus was not confirmed until 1972 when the viruss particles were first seen through the electron microscope em the first outbreak of norovirus was in 1968 at a school in norwalk ohio with a great rate of illness to the students and teachers

nevertheless norovirus is quite hardy and can survive for days or weeks on contaminated surfaces which also contributes to its spreadability washing your hands with soap is an effective means of warding off infection though alcoholbased solutions are less effective as norovirus is not packaged in a lipid viral envelope, norovirus is a very contagious virus that causes gastrointestinal illness in humans it is the most common cause of illnesses from contaminated food in the united states an estimated 20 , the cdc has announced the availability of a new toolkit designed to help health care professionals control and prevent norovirus gastroenteritis outbreaks in health care settings according to the , a norovirus is a virus that can cause acute viral gastroenteritis commonly known as the stomach flu these viruses are highly contagious and can survive extreme hot and cold temperatures they can even survive in water treated by chlorine