RSV, flu, COVID-19, norovirus on rise. See symptoms, facts

Cases of RSV, flu, COVID, and norovirus are on the rise as winter “sick season” arrives
It’s sick season in Philly: the cold-weather months when cases of respiratory illnesses and the “stomach bug” norovirus rise. Some public health experts have called the combination of viruses circulating “the quad-demic” — referring to a wave of illness from the simultaneous spike in COVID,
Minnesota ERs strained as cases of flu, COVID, RSV and norovirus surge across the country
Four illnesses are filling Minnesota hospitals, and health leaders are warning you that Minnesota is dealing with a "quad-demic." This year, Minnesota has nearly reached 1,800 hospitalized influenza cases this season.
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.
COVID-19, RSV and flu in Minnesota: Up, up and way up
The latest confirmed hospitalization data shows notable increases of just over 30% in hospital admissions due to both COVID-19 and RSV during the last full week of December.
COVID, RSV and flu are on the upswing in Brevard. But rates are similar to previous years
Respiratory viruses are on the rise in Brevard, though not at a rate higher than previous years, according to local health systems.
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 Centers for Disease Control and Prevention (CDC). RSV case counts are also elevated in most states, especially in children.
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.
What virus is going around? RSV, flu and COVID-1 cases rise in Tennessee and nationwide. What to know
State and federal data show high levels of respiratory illnesses. Here's what to know about the illnesses circulating this winter, their symptoms and how to prevent them.
What are symptoms of the flu, RSV or COVID-19? What to know in Oregon
As colder weather sets in, common illnesses such as the cold, flu, RSV and COVID-19 viruses are making their way around Oregon. Here's what to know.
Winter surge: NYC faces rising flu and COVID cases, slight RSV dip
The annual surge of respiratory viruses — flu, COVID-19 and RSV — is in full swing, straining health systems and sparking concerns across the city. With flu cases spiking by 70% in recent weeks and all three viruses actively circulating, health officials have urged residents to take precautions to protect themselves and vulnerable populations.
Flu and RSV cases spike in B.C., but COVID-19 remains low
New data shared by B.C.'s Centre for Disease Control shows the province has one of the worst flu rates in Canada, as a holiday-season spike in respiratory illnesses continues.
'Quad-demic' overwhelms US hospitals as flu, Covid, RSV, and norovirus surge: Tips to stay safe
Hospitals in the USA are overwhelmed with a surge in patients due to a 'quad-demic' of flu, Covid-19, RSV, and norovirus.
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How Covid could still be affecting your immune system, five years on
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