Loading

Thursday, October 8, 2009

H1N1 Immunity in Groups?

According to the CDC, New York and New Jersey were hard hit by the H1N1 virus in the spring but have fewer cases this fall. Dr. Jon LaPook explains a protective effect called "herd immunity."

This CBS video brought to you by News Distribution Network. Stay informed with DailyIQ - follow on Twitter

No comments:

Post a Comment