News & Perspective

Feb 08, 2008

Feb 08, 2008

US military switching to new smallpox vaccine

Editor's note: This story was revised Feb 11 to include some additional information provided by the Department of Defense.

(CIDRAP News) – After vaccinating more than a million personnel with the old-fashioned type of smallpox vaccine grown on the skin of calves, the US military is about to switch to a second-generation vaccine that's grown in laboratory cell cultures.