While cases are climbing in China, the situation is very different from what it was when Covid-19 emerged five years ago, ...

Emergency room visits with influenza are now "very high" nationwide, the Centers for Disease Control and Prevention said Friday, in this week's update on the winter respiratory virus season.

For influenza viruses, imperfection is a strength. They constantly mutate, producing new strains that challenge immune ...

The risk of respiratory syncytial virus, or RSV, is on the rise, along with that of other illnesses including the flu, stomach flu and COVID-19.

Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United ...

Previous seasonal flu infections and vaccinations may protect us against infection from the highly pathogenic H5N1 bird flu outbreak.

Researchers are prepared to analyze immune cells from human samples should H5N1 begin spreading between people.

Highly pathogenic H5N1 avian influenza A virus (HPAI H5N1) remains a low risk to the general public, and public health experts in the United States believe that available treatments and vaccines, as ...

Holidays are upon us — and so is the flu. More Americans are getting infected with seasonal influenza and seeking care, according to Centers for Disease Control and Prevention data.

A patient in Louisiana who tested positive for bird flu has died, marking the first US fatality linked to the respiratory ...

Here’s what you can do about it. Most seasonal flu viruses are influenza type A, which usually start earlier in the season, with type B viruses circulating later in the winter. Currently ...

Highly pathogenic avian influenza A(H5N1) viruses are circulating among wild birds and poultry in British Columbia, Canada. 1 These viruses are also recognized to cause illness in humans.