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

Polio
Polio is a highly contagious infection caused by the poliovirus. In a small percentage of infected people, the virus attacks nerve cells in the brain and spinal cord.


.

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