April 26 (Bloomberg) -- A public health emergency has been declared in the U.S. to free up resources to deal with the swine flu, Janet Napolitano, secretary of the Department of Homeland Security, said at a White House briefing today.

No official travel advisories have been issued by the U.S. State Department in relation to the disease, Napolitano said. A follow-on flu outbreak is possible in several months, she said.

To contact the reporter on this story: Vincent Del Giudice in Washington at vdelgiudice@bloomberg.net

Last Updated: April 26, 2009 12:57 EDT