RSV, norovirus and flu

What to know about 'quad-demic' of COVID, flu, RSV and norovirus in US
The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is what you need to know.
Experts warn of a ‘quad-demic’ as flu, RSV, COVID-19 and norovirus converge in California
After the holiday season and an uptick in travel, California is seeing a rise in respiratory illnesses, prompting health experts to talk of a potential “quad-demic.” The term refers to the simultaneous spread of four major viruses: COVID-19,
Are your symptoms the flu, COVID, RSV, Norovirus? How to tell the difference
Flu season is here in New Jersey, but other illnesses are in full swing in the Garden State. Here are the symptoms and how long you're contagious.
As the flu rises in California, the difference between COVID, RSV, Norovirus, influenza
Flu season is here in California, but other illnesses are in full swing in the Golden State. Here are the symptoms and how long you're contagious.
Where are COVID, flu and RSV cases rising in the US? See maps
Influenza A, COVID-19 and norovirus (stomach flu) are on the rise, according to the Centers for Disease Control and Prevention. But there's a fourth "bug" the public should be aware of: respiratory syncytial virus. RSV causes cold-like symptoms and affects the breathing passages and lungs.
How to protect yourself from norovirus, COVID-19, flu and RSV during the winter surge
There’s no medication for norovirus. Instead, you’ll need to rehydrate as much as possible with water and other liquids. Seek help if you are dehydrated and notice you have a dry mouth and throat, aren’t urinating as much or feel dizzy when you’re standing up.
Viral sicknesses rise amid ‘quad-demic’ in US
Viral sicknesses have risen in early 2025 amid the ongoing “quad-demic” in the U.S., referring to three respiratory viruses and one gastrointestinal disease, according to the Centers for Disease Control and Prevention (CDC) data.
Where are flu rates surging? See maps
At least 15 states have very high levels of influenza, according to the Centers for Disease Control and Prevention.
Moderna awarded $590M to help accelerate development of mRNA-based bird flu vaccine: HHS
Moderna has been awarded approximately $590 million from the federal government to help speed up the development of an ...
Why The U.S. Could Be Making The Same Mistakes With Bird Flu As It Did With COVID-19
The first severe human case of bird flu was recently reported in the U.S. Here are some ways the U.S. may be repeating the ...
Alabama among the worst in the nation for flu, COVID and RSV, health officials say
Despite a recent 19% decrease in emergency department visits, health officials anticipate that Alabama's flu activity will ...
9 flu deaths reported since start of season in New Hampshire
Health care facilities across New Hampshire are dealing with high amounts of flu and respiratory cases coming into their ...
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Flu, COVID, RSV spike strains Rochester hospitals, some at 150% capacity
The rise in flu, COVID-19, and RSV cases is putting a strain on local hospitals, which are operating well beyond their ...
Flu, RSV, COVID continue making life miserable for North Dakotans
Cases of flu and RSV continue to rise in North Dakota, while COVID is down a bit from a week ago. According to data from the ...
Cold season tips: How to avoid catching COVID and flu during the holidays
Updated vaccines, proper hygiene and staying home when you're sick can help prevent the spread of respiratory illnesses this ...