Health

Vomiting virus spreading across US: Key symptoms and precautions to take now

Norovirus spreads easily through close and direct contact

Published May 30, 2026
Vomiting virus spreading across US: Key symptoms and precautions to take now
Vomiting virus spreading across US: Key symptoms and precautions to take now 

A highly contagious stomach virus commonly known as the “vomit bug” is spreading across the United States, posing serious health risks to people.

On May 29, NBC reported the news of a vomiting virus, also called norovirus, outbreak in most areas of the US including Southern California.

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According to the Pacific Crest Trail Association (PCT), the hikers have been suffering from serious symptoms.

Taking to instagram, PCT posted, “The PCTA is aware of reports of gastrointestinal illness in the Wrightwood area. We are working with the San Bernardino County Department of Public Health as they assess the situation. We intend to share information publicly as soon as it is available.”

According to the Centers for Disease Control and Prevention’s NoroSTAT program, the cases related to norovirus have seen a major uptick from August 1 to May 7. Between this period, the health officials have recorded 1,194 cases compared to 2,534 cases reported during the previous years.

Amanda Bidwell, the scientific program manager at WastewaterSCAN, said, “At the national level, norovirus is still in the HIGH category due to high concentrations over the last 21 days.”

What is the Norovirus & its symptoms?

Norovirus is a highly contagious stomach bug that is responsible for foodborne disease, leading to acute gastroenteritis.

The symptoms include sudden vomiting, diarrhoea, nausea, stomach cramps and fever, headaches and body aches. Symptoms usually appear 12 to 48 hours after being exposed or infected and typically last 1-3 days.

How does the vomiting virus spread?

According to health experts, the virus spreads easily through close and direct contact. In crowded places, such as cruise shops, nursing homes, schools, and camps, it spreads more quickly due to the close proximity of the infected person.

Moreover, eating or drinking contaminated food, water and touching the contaminated surface can also infect people. Even, one can easily be infected by inhaling tiny airborne particles released during vomiting.

Who is at the most risk?

Norovirus can be more dangerous for kids, older people, pregnant ladies and people with weak immune systems due to intense dehydration it causes because of vomiting and diarrhea.

What precautions to take?

To avoid the infection, people must wash their hands often, especially after outdoor activities, using the toilet and before taking meals.

In the case of feeling sick, avoid work, school and other crowded places for at least 48 hours. Being highly contagious, one can spread virus even after feeling better.

Disinfect the surfaces regularly with bleach-based cleaners to avoid the infection and reduce transmission

Use hot water and potent detergent to wash contaminated clothes.

Increase intake of water. In the case of symptoms, take electrolyte solutions or oral rehydration drinks more often.

In the case of extreme symptoms, such as intense dehydration, high fever, and blood in stool, immediately seek medical advice and care. 

Aqsa Qaddus Tahir
Aqsa Qaddus Tahir is a reporter dedicated to science coverage, exploring breakthroughs, emerging research, and innovation. Her work centres on making scientific developments understandable and relevant, presenting well-researched stories that connect complex ideas with everyday life in a clear, engaging, and informative manner.
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