Sudden vomiting, diarrhea, or stomach cramps can be alarming, especially when they come on quickly. Norovirus is a highly contagious stomach virus that spreads easily in crowded settings. Understanding how it spreads, how common it is, and when to take action can help. This self-assessment quiz will guide you through key facts.

How Does Norovirus Spread?

Norovirus spreads through contaminated food, water, surfaces, or direct contact with an infected person. Even tiny amounts of the virus can cause infection. It spreads quickly in schools, cruise ships, and restaurants, making good hygiene important in preventing outbreaks.

How Common Is Norovirus?

Norovirus is one of the most common causes of foodborne illness. Millions of people get it each year, especially during colder months. Since the virus spreads easily, outbreaks often happen in places where many people share food or facilities.

Can Norovirus Be Prevented?

Washing hands with soap and water is the best way to prevent norovirus. Hand sanitizers don't work as well against it. Properly cleaning surfaces, washing fruits and vegetables, and avoiding contaminated food or water can also help reduce the risk.

When Should You Be Concerned?

Most norovirus infections go away on their own, but dehydration can be a risk, especially for young children and older adults. If symptoms like vomiting or diarrhea last too long, drinking fluids and resting can help the body recover.