Which statement is true regarding Norwalk virus?

Norwalk virus, also known as Norovirus, is a highly contagious virus that causes gastroenteritis. The statement that viral shedding continues long after acute illness is true because individuals infected with Norovirus can continue to shed the virus in their stool for weeks or even months after the symptoms have resolved. This prolonged shedding can lead to continued transmission of the virus in environments where hygiene practices are not strictly followed.

The ability to shed the virus even after recovery is significant because it means that infected individuals can inadvertently contribute to outbreaks, especially in settings with close contact such as cruise ships, nursing homes, and schools. Understanding this characteristic helps in implementing effective preventive measures to control the spread of Norovirus, such as good hand hygiene and proper sanitation practices.