Just a few puffs into each nostril, and you're protected against infection from nasty cold viruses - that is, according to claims made for many nasal sprays. Can they really do this?Well, not directly ...

According to the CDC, during the 2034-25 influenza season, there have been 24 million cases and 13,000 deaths so far.

Millions of people fall ill with the flu every year, and adults age 65 and older are at higher risk of developing serious ...