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A woman with norovirus lies on the couch.
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What to Know about the Norovirus

Stomach pain, digestive issues, and nausea — all things we try to avoid. Unfortunately, the norovirus has other plans. In recent weeks, infections have surged across the nation, increasing the likelihood that you or a loved one become sick. 

That’s why learning about causes, symptoms, and treatment is essential. Here’s everything to know about the norovirus.

Defining Norovirus

Norovirus is a highly infectious virus that causes acute gastroenteritis, leading to sudden vomiting, diarrhea, and stomach pain. Commonly referred to as a “stomach bug,” noroviruses impact people of all ages. What’s more, because there are different types of noroviruses, it’s difficult to develop immunity even after infection.

Each year, around 2,500 noroviruses outbreaks are reported in the U.S., spreading rapidly in schools, restaurants, and on cruise ships. On average, 20 million Americans fall sick, with over 100,000 requiring hospitalization.

Symptoms

Symptoms usually appear 12-48 hours after exposure and can last up to three days. Common health complications from noroviruses include:

  • Diarrhea
  • Vomiting
  • Nausea
  • Stomach pain
  • Fever
  • Headache
  • Body aches

Severe vomiting and diarrhea can lead to dehydration, especially in young children, older adults, and those with other health conditions. Watch for:

  • Decreased urination
  • Dry mouth and throat
  • Dizziness when standing
  • Crying with few or no tears (in children)
  • Unusual sleepiness or fussiness

How Noroviruses Spread

Noroviruses are extremely contagious and spread quickly. Infection can occur through:

  • Close contact with someone who’s sick This includes caring for them, sharing food, or using the same utensils.
  • Consuming contaminated food or water If food or drink is handled by an infected individual, it can carry and spread the virus.
  • Touching contaminated surfaces Norovirus can live on commonly shared items such as door handles or elevator buttons, transfer to your hands, and lead to infection.

How to Stay Safe

By taking simple precautions, you can help protect yourself and loved ones from the norovirus. During outbreaks, be sure to: 

  • Wash your hands often with soap and water
  • Clean surfaces regularly
  • Avoid preparing food when symptomatic
  • Cook shellfish thoroughly
  • Wash fruits and vegetables well
  • Disinfect contaminated areas
  • Wash laundry in hot water

Treatment

Norovirus infections often resolve themselves in one to three days. During your symptomatic period, be sure to rest and drink plenty of fluids. Whenever possible, isolate from other members of your household. If symptoms continue, or suddenly worsen, consult with a health care provider right away. They may prescribe medications to combat nausea and diarrhea. 

Even after recovery, you can be contagious for up to two weeks. During that time, avoid social gatherings, wear a mask, and wash your hands frequently.

Care When You Need It with AltaMed

If you or a family member are feeling unwell, we’re here to help. AltaMed Now telehealth connects you with a care professional who can answer questions, diagnose symptoms, and prescribe treatments. To get started, call (888) 499-9303 or schedule an appointment through the MyAltaMed patient portal.

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What to Know about the Norovirus