1772 views

What is an allergy ?

This video describes about allergy. An allergy is an immune system reaction to a normally harmless substance, such as pollen, dust, pet dander, or a food protein. Watch this to get a better understanding of what that reaction entails. And for more, visit: http://conditions.healthguru.com/

You need to login to download this video.
login or signup

Channels: Medical

Tags: What is an Allergy

Uploaded by: ( Send Message ) on 10-10-2012.

Duration: 2m 22s