Influenza viruses change slightly with time. This makes the seasonal vaccine used in the previous years ineffective. The effectiveness of the flu vaccine solely depends upon how closely the viruses in circulation in the community match the virus...

Continue reading »

Influenza viruses cause flu, a highly contagious respiratory illness. Flu affects the lungs, throat, and nose and can cause mild to severe illness. You can prevent flu by getting a flu vaccine every year. Read on to learn key facts about the flu shot.

Continue reading »