Every winter, respiratory viruses, especially influenza, SARS-CoV-2 and RSV, put huge pressure on health care systems ...

While flu levels are still low, a strain that has wreaked havoc in the U.K. and Canada is behind most cases so far in the U.S ...

Flu season is here with a mutated H3N2 strain causing concern. Health experts urge vaccination as holiday gatherings approach ...

Flu season has begun early, and cases are expected to rise during holiday travel as a fast-spreading H3N2 subclade K strain ...

A seasonal flu virus suddenly mutated in the summer. It appears to evade some of our immunity, has kick-started a flu season ...

CNN/U.S. Based in Chicago, he has covered several high profile stories for the network, including the ongoing violence in Chicago, the trial and conviction of former Illinois Governor Rod Blagojevich, ...

Doctors report a rise in cases of Hong Kong flu — the A/H3N2 strain of the seasonal virus known for its high contagiousness ...

I was talking to a pharmacy owner over the weekend who said they had hired an extra pharmacist over the winter to cope with ...

New data suggests an eruption cooled Europe, disrupted harvests and pushed Italian states into grain trades that may have ...

The H1N1 virus claimed eight more lives in Egypt, raising the total number of deaths in the country to 248, the Ministry of Health announced. January 26, 2010 25 January 2010 CAIRO: The H1N1 virus ...

H5N5 is found in wild birds around the world, and it is relatively common for it to pass from them into flocks of poultry.