The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
The Centers for Disease Control and Prevention (CDC), as part of the Public Health Service, is charged with protecting the public health of the Nation by providing leadership and direction in the prevention of and control of diseases and other preventable conditions and responding to public health emergencies. Within the CDC, there are four coordinating centers, two coordinating offices, and the National Institute for Occupational Safety and Health.
Agency URL: http://www.cdc.gov/