A study conducted at the University of São Paulo (USP) in Brazil reveals that tissues such as the tonsils and adenoids can ...

Add Yahoo as a preferred source to see more of our stories on Google. It's cold and flu season again. (Getty Images) (HUIZENG HU via Getty Images) This time of year, there are a number of viruses ...

New research shows the common cold virus may stay hidden in the body and spread without symptoms long after recovery.

What causes the flu and what causes a cold? Colds and flu are both respiratory illnesses, but are caused by different viruses. “Colds are primarily caused by viruses, with rhinovirus being the most ...

Dear A.T.R.: Both colds and influenza (the "flu") are respiratory illnesses that are caused by viruses. Influenza is caused specifically by the influenza viruses, which come in two main types (A and B ...

If you're experiencing cold or flu-like symptoms this winter – your symptoms may be linked to a lesser-known respiratory ...

Here's how to distinguish between allergies and a cold during spring allergy season.

When the common cold rips through a household, it can leave a wildly uneven path of symptoms. The same cold-causing rhinovirus that produces barely a sniffle in one person can cause a week of ...

While hay fever and cold viruses share some overlapping symptoms, one of the main differences is that, ironically, hay fever ...

Flu and Covid, including a new variant called BA.3.2, nicknamed “cicada,” are still circulating, along with several other ...

Learn the critical differences between flu and cold symptoms this season, and discover why flu vaccinations are vital for ...