The California Department of Public Health classifies all of Southern California as having high flu levels, while Central and Northern California a

The CDC is sounding alarms nationwide as flu cases skyrocket, pushing an already strained hospital system to its breaking point.

The number of people hospitalized with flu nearly doubled during Thanksgiving week — 19,593 compared to 11,378 people admitted to the hospital the

Nearly 20,000 people in the United States were admitted to the hospital for flu last week, almost double the number of admissions from the week bef

Nearly 20,000 people in the United States were admitted to the hospital for flu last week, almost double the number of admissions from the week bef

The Netherlands declined to say how many players are fighting flu symptoms ahead of its World Cup match with the U.S.

Covid-19 spread and prevention measures kept other viruses in check last year.

Meanwhile, 44 states reported high or very high flu activity last week, the Centers for Disease Control and Prevention said Friday.

Flu, RSV and COVID-19 have many symptoms that are similar, but public health experts tell ABC News how you may be able to tell the difference betwe

Thousands of Minnesota nurses are planning to go on strike this month for three weeks.

With 1,147 hospitalizations so far, that figure has already surpassed the number of flu hospitalizations from the last two flu seasons combined.

Hospitals in the US are taking emergency measures to respond to a spike in respiratory viruses among young children.

The Centers for Disease Control and Prevention tracks flu hospitalization rates using the Influenza Hospitalization Surveillance Network, which cur

So far this season, more than 6.2 million people have reported getting the flu and 53,000 have been hospitalized.

Over the last week, 800 patients at Cook Children's Medical Center have tested positive for the flu, and that's as many as anyone can rem

State wildlife officials suspect that bird flu killed at least 300 waterfowl recently found dead at public hunting sites across southern Illinois.

The city of Chicago is making it easier than ever to get your COVID booster and flu vaccine.The health department will bring both shots right to yo

The colder weather is a breeding ground for new respiratory viruses that put those living with long-term health conditions at risk of severe illnes

New CDC data shows two-thirds of U.S.

The influenza virus has finally returned in earnest.

The flu is sending more children to the hospital in the US right now than it has in over a decade, just as an autumn spike in severe RSV cases is s

Roughly half of the United Kingdom's free-range turkeys and geese have either died or been culled after contracting avian flu in the commonwea

A record bird flu outbreak in the UK has resulted in culling of almost half of the nation’s free-range turkeys for Christmas, according to the poul

How active is the flu right now?