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.
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.
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.
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,
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.
Respiratory illnesses are up nationwide: Here are the COVID, flu and RSV hotspots
If it feels like everyone around you is fighting off a cold or recovering from the flu, it may be because respiratory illnesses are running rampant in most of the United States, and cases are only increasing.
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.
Respiratory virus activity remains 'high' in US and will 'continue for several more weeks': CDC
Respiratory viruses are continuing to spread across the United States and such activity "is expected to continue for several ...
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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 ...
COVID Map Update Reveals Worst Hit US States
COVID-19 tests across the country came back positive, but Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin had an 8 ...
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COVID, RSV and flu are on the upswing in Brevard. But rates are similar to previous years
Florida's wastewater showed low levels of COVID and moderate levels of flu and RSV, according to the CDC. It's normal to see a surge in these viruses during the winter, said Lance Skelly ...
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 ...
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 ...
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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 ...