Official websites use .gov
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.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Ten essential public health servicesSource: US Department of Health and Human Services. Public health in America: public health functions project. [Web document]. Washington DC: The Department, 1995. [rev. 1999; cited 14 Feb 2007]. <http://web.health.gov/phfunctions/public.htm>.
