News & Perspective

Sep 10, 2004

Sep 10, 2004

1950s smallpox vaccine passes dilution test

(CIDRAP News) – A test of smallpox vaccine made by Aventis Pasteur in the 1950s show it is still effective even when diluted, suggesting that the United States has more than enough vaccine for everyone, according to a report this week in the Journal of the American Medical Association.