Norovirus, also known as the “winter vomiting bug,” is a highly contagious virus that causes stomach and intestinal inflammation, also known as gastroenteritis. The virus is responsible for causing around 19 to 21 million cases of acute gastroenteritis in the United States annually, and it is the leading cause of foodborne-disease outbreaks in the country.
How Does Norovirus Spread
The most common symptoms of norovirus infection include nausea, vomiting, diarrhea, and stomach cramps. These symptoms usually develop within 12 to 48 hours after exposure to the virus and can last for one to three days. Other symptoms may include low-grade fever, chills, headache, muscle aches, and fatigue. Although norovirus can be unpleasant, it usually clears up by itself within a few days and most people make a full recovery. However, it can be more serious for people with weakened immune systems, such as older adults or those with chronic illness.
Norovirus is spread through close contact with an infected person, or through contact with contaminated food or surfaces. It can also be spread through the air by tiny droplets from the vomit or feces of an infected person. Common sources of norovirus include:
- Eating contaminated food, such as raw or undercooked shellfish or fruits and vegetables that have been contaminated during harvesting or preparation
- Drinking contaminated water
- Touching contaminated surfaces and then touching your mouth
- Being in close proximity to an infected person and breathing in the virus
The virus can survive for long periods on surfaces and can be difficult to kill. It is resistant to many common disinfectants and can survive freezing temperatures. It can also be transmitted by an infected person for up to two weeks after recovery.
Preventing the spread of norovirus is important, especially in enclosed spaces such as hospitals, care homes, and schools. The best way to prevent the spread of norovirus is to practice good hygiene, such as washing hands frequently with soap and water. Hands should be washed before and after preparing food, after using the toilet, and after coming into contact with anyone who has norovirus.
How Does Norovirus Spread
It’s also important to clean and disinfect any surfaces that may have been contaminated with norovirus, such as toilets, door handles, and kitchen counters. Clothing and bedding should be washed thoroughly with hot water. People who have norovirus should avoid preparing food for others, and should not return to school, work, or other public places until at least 48 hours after their symptoms have gone.
There is no specific treatment for norovirus infection, but drinking fluids to replace lost fluids and electrolytes can help prevent dehydration. Over-the-counter medications, such as Loperamide, can help relieve diarrhea. However, it is best to avoid taking anti-diarrheal medications if you are vomiting, as they can make you feel worse.
In conclusion, Norovirus is a highly contagious virus that causes stomach and intestinal inflammation, also known as gastroenteritis. It is spread through close contact with an infected person, or through contact with contaminated food or surfaces. The best way to prevent the spread of norovirus is to practice good hygiene, such as washing hands frequently with soap and water. It is also important to clean and disinfect any surfaces that may have been contaminated with norovirus and avoid close contact with infected people and contaminated surfaces.