FILE - In this 1976 file photo, Dr. Baruch S. Blumberg poses for a photo in New York. Dr. Baruch S. Blumberg, a Philadelphia researcher who shared the 1976 Nobel Prize in physiology or medicine for ... more 
FILE - In this 1976 file photo, Dr. Baruch S. Blumberg poses for a photo in New York. Dr. Baruch S. Blumberg, a Philadelphia researcher who shared the 1976 Nobel Prize in physiology or medicine for his discovery of the hepatitis B virus has died in California. Dr. Baruch S. Blumberg was 85. less 
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Associated Press | Photo By Eddie Adams, File
Wed, Apr 6, 2011 10:27 PM EDT