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.
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 faces a rise in respiratory illnesses, prompting health experts to talk of a “quad-demic.” The term refers to the simultaneous spread of four major viruses: COVID-19,
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.
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.
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 ...
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 ...
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The leading causes of death in America right now, according to the CDC—and how COVID-19 compares
Death Records examined data from the Centers for Disease Control and Prevention to understand and explain the evolution in ...
5 years of the COVID-19 pandemic, the return of Trump and the war on public health
Trump returns to the White House as the tenth wave of the COVID-19 pandemic once again inundates hospitals, while the last ...
Delaware seeing 'very high' levels of COVID, flu and RSV, CDC says. How to keep safe
COVID-19 activity has increased in most areas in the U.S. while seasonal flu activity remains elevated across the country, the CDC said. Meanwhile, RSV activity is very high in many areas of the U.S., ...
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 ...
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.