Staff and observers worry that the agency may not be prepared for emerging threats including bird flu and insect-borne diseases.

A person hospitalized with measles in West Texas has died, the first in an outbreak that's infected more than 120 people.

CDC staff received an email this week telling them to avoid using more than a dozen terms or words -- including "health ...

Measles cases in Texas from an outbreak in Gaines County are growing. There are now more than 120 cases confirmed. CBS News' ...