Introduction to Public Health Surveillance

Ever wonder what public health surveillance is or why it’s important? Learn how we use public health surveillance to follow disease patterns and stop diseases in their tracks. Hear Dr. Ralph Cordell, an epidemiologist at the Centers for Disease Control and Prevention, talk about what makes public health surveillance an important part of public health practice from his 40 years in the field. See how data collected by public health surveillance systems drive decisions for programs and policies.

Comments on this video are allowed in accordance with our comment policy: http://www.cdc.gov/SocialMedia/Tools/CommentPolicy.html

This video can also be viewed at

Nude, naked girl and boy photos & videos. Update hourly!