norovirus, RSV and COVID

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.
Are your symptoms the flu, COVID, RSV, Norovirus? How to tell the difference
Symptoms of influenza are sore throat, cough, congestion, headaches and body aches. Fever is also a common symptom, although the Centers for Disease Control and Prevention said not everyone with the flu will have a fever.
RSV, flu, COVID-19 and norovirus are on the rise in 2025. What to know
While there is a whole host of viruses going around, there are thankfully no new viruses to fret about—the ones we have are bad enough.
Flu, RSV, and Norovirus Are in Full Swing, While COVID Looms
Most U.S. states are reporting high or very high flu-like activity, while COVID-19 rates remain lower than this time last year.
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.
RSV, flu, COVID-19, norovirus on the rise. See symptoms, facts
Several viruses are causing illnesses in Ohio and the U.S. See the symptoms for COVID-19, RSV, flu, norovirus and bird flu.
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,
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.
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Flu & COVID Cases Are 'Surging'—Keep This Editor-Tested Rapid Test Handy to Start Treatment Faster
This easy-to-use rapid test can give you peace of mind The new year has just begun, but flu season is in full swing, with the ...
As bird flu spreads, CDC recommends faster 'subtyping' to catch more cases
The CDC announced on Thursday its recommendation to test hospitalized influenza A patients more quickly and thoroughly to ...
Respiratory illnesses are up nationwide. Here are the COVID, flu and RSV hotspots
When broken down by state, most of the country is experiencing elevated respiratory illness, including a few states with ...
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Flu, COVID, and RSV: Flu Is Driving a Surge of Illness in Most States
Flu and COVID-19 case counts are high and rising in most parts of the United States, according to recent data by 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 ...
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We're in flu season. What are symptoms? How to tell it's not another virus
according to the CDC. But there are other respiratory viruses circulating as well. Along with flu, winter months are ...
These 3 Illnesses Are Spiking In MD, CDC Says
"When levels are high, it may indicate that infections are making people sick enough to require treatment," the CDC explained ...