Can you get the Norwalk flu twice?

Yes, it is possible to get the Norwalk virus, commonly associated with gastroenteritis, more than once. This is because there are multiple strains of the virus, and immunity to one strain does not guarantee immunity to others. Additionally, the immune response may wane over time, making reinfection possible. Taking precautions such as proper hand hygiene can help reduce the risk of contracting the virus again.