Norovirus can cause moderate to severe gastroenteritis and may present with nausea, vomiting, diarrhoea abdominal pain, fever, myalgia and headaches. Infection may also be asymptomatic. Transmission occurs through faecal-oral spread, from direct contact with a case, contaminated surfaces, ingesting contaminated food or from airborne droplets of vomitus for an infected individual. Norovirus can have a gradual or sudden onset. It typically develops within 24-48 hours after exposure . The illness is generally short-lived, lasting approximately 24-72 hours, it is highly contagious due to its ability to survive in the environment. Infected individuals can continue to shed the virus for up to 2-4 weeks after recovery.