As a bureau of the Department of Health and Human Services (HHS), the Centers for Disease Control and Prevention (CDC) is at the forefront of meeting the health challenges of today and the future. You may not know our faces, but you hear from us and about us in the news when an outbreak occurs and when a quick response is needed. Whether we are protecting the American people from public health threats, researching emerging diseases, partnering with national and international organizations to develop health systems; or helping to immunize children in a small town village, we rely on CDC employees to make a real difference in the health and well-being of people here and around the world. Visit http://www.cdc.gov/aboutcdc.htm to learn more about the CDC.