The Norovirus has spread a lot in the Northeast of the United States recently, according to data from the Centers for Disease Control and Prevention (CDC). This illness is very contagious and causes vomiting and diarrhea. The CDC has found that food is the main way it spreads.
In most parts of the United States, there has been an increase in positive tests for Norovirus. This rise is normal during the winter months. Still, the Northeast has been affected a lot more with an average of 13.7 percent of positive tests over the past three weeks. Since December 2023, the positive rate has remained above 10 percent.
Other regions in the U.S. also report an increase in Norovirus cases. In the South, the positive rate has been around 9.4 percent for the past three weeks. Meanwhile, in the Midwest, it’s 10 percent and in the West, it’s 12.6 percent.
What is Norovirus?
Norovirus causes about 21 million cases of acute gastroenteritis annually, according to the CDC, making it the number one cause for this illness in adults in the U.S. It is a powerful virus that can easily spread due to certain characteristics. It remains alive in many environments and can quickly spread, particularly in closed places like cruise ships and airplanes.
How does Norovirus spread?
It is estimated that Norovirus causes about 60 percent of all foodborne illness outbreaks. It primarily spreads when someone comes into contact with microscopic norovirus particles through food, water, or another person. The virus is shed heavily in vomit and stool of infected persons. Also, airborne vomit can transmit the virus. Some individuals continue to spread the virus after they have recovered from it, even up to 28 days afterward.
What are the symptoms of a Norovirus infection?
Common symptoms of Norovirus include nausea, vomiting, diarrhea, and abdominal pain. Usually, it’s not dangerous and people recover in a couple of days. However, it can be more serious in children, the elderly, and people with weak immune systems.
How do you protect against Norovirus?
The best way to avoid getting sick with Norovirus is by frequently washing your hands, especially at places where many people gather such as restaurants, schools, or on cruise ships. Caution is required when consuming shellfish, as these can be a source of infection.
