Chrome 2001
.
Aetna Intelihealth InteliHealth Aetna Intelihealth Aetna Intelihealth
 
.
. .
Harvard Medical School
.
Chrome 2001
Chrome 2001

Flu (Influenza)
Influenza (the flu), is a respiratory infection. It is caused by the influenza virus. Influenza typically is spread by air or by direct contact from one person to another. Influenza virus is very contagious.


.

.
.  
This website is certified by Health On the Net Foundation. Click to verify.
.