Norovirus: Symptoms, Prevention, & More
As we often see in the winter months, norovirus and other gastrointestinal (GI) viruses are circulating throughout the South Shore.
Norovirus, which is a very common and very contagious virus, is sometimes referred to as the stomach bug, throw-up bug, or GI flu.
Norovirus is present throughout the year, but we tend to see more activity in our region during the winter due to people spending more time indoors and congregating for holidays and other gatherings.
While we see norovirus outbreaks nearly every winter, 2024/2025 has been a particularly bad season – data from the CDC indicates more than 100 different norovirus outbreaks across the United States so far this season.
In recent weeks, we've seen an increase in inquiries from patients seeking information on how to manage norovirus and similar GI illnesses.
Below, you can find norovirus/GI illness guidance from South Shore Health providers.
What are the symptoms of norovirus?
The most common norovirus symptoms are diarrhea, nausea, vomiting, stomach pain, and stomach cramps.
Some patients may have a slight fever as well.
What does the timeline look like for norovirus infection?
As mentioned above, norovirus is extremely contagious. It often comes on quickly, in most cases within 12-24 hours after exposure.
While every patient is different, norovirus typically lasts for 1-3 days.
How can I avoid norovirus?
Practice good hand hygiene! Wash your hands frequently, especially before eating and if you're at large gatherings.
20+ seconds of washing with soap and water is the most effective way to prevent illness, as alcohol-based hand sanitizers aren't effective against norovirus.
What should I do if I have norovirus?
While norovirus symptoms are certainly uncomfortable, it's important to note that for most people norovirus is not a medical emergency.
If you have norovirus, focus on hydration and rest. Water or rehydrating juices with electrolytes can help replace the fluids lost to vomiting and diarrhea.
Once you feel like you're ready to handle food, stick to small amounts at first.
Bland foods work best – think bread, crackers, or plain rice.
What if someone in my household has norovirus?
If a family member has norovirus on another GI virus, do your best to limit contact when possible.
Continue to observe good hand hygiene with frequent, thorough handwashing.
In addition, use cleaning products containing bleach to clean contaminated or high-touch surfaces in your home regularly.
By managing your symptoms, staying hydrated, and getting plenty of rest, most patients will be feeling better within a few days.
If you find home care measures aren't working or if you aren't seeing any improvement after 48 hours, please contact your primary care provider for further guidance.
