A highly contagious respiratory virus, HMPV, is spreading on the West Coast and beyond. Experts warn of symptoms, severe ...

The alarm was sounded after an unvaccinated child, who was infectious at the time, attended the unidentified program in ...

California is sounding big alarms as measles, one of the most contagious diseases known to medicine, races through pockets of ...

Human metapneumovirus (HMPV) has recently become a headline virus, particularly as cases have drawn attention in parts of the U.S. West Coast. For many people, the name sounds alarming because it is ...

Fears have escalated after more than 100 children were exposed to the 'world's most contagious disease' in California ...

The U.S. is in the thick of flu season, with many states reporting "moderate to very high activity" of influenza-like illness, according to the CDC. With influenza A (H3N2), or subclade K, making up a ...

From the flu to the common cold, viruses keep knocking out Minnesotans this winter. After you start to feel better, how long are you contagious? "After the flu, you're generally the most contagious at ...

By Vijay Kumar Malesu New research reveals how measles infection disrupts immune memory and increases vulnerability to other infections, reinforcing why high vaccination coverage remains critical to ...

Most of us try to dodge coughs and sneezes, but some viral threats aren’t so obvious. Research shows that many viruses can linger in the air and on surfaces long after an infected person has left the ...

One of the world’s most contagious diseases — capable of infecting as many as 18 people from a single case — is on the rise again, a decade after it was wiped out in Australia.