Dr. Paul F. Wehrle, who helped eradicate smallpox, died in San Clemente, Calif., on Tuesday, May 11, 2004, of natural causes, his son Karl said Sunday. He was 82. The doctor chaired the University of Southern California's department of pediatrics from 1961 to 1988 and helped with the clinical trials of the Salk vaccine that wiped out polio in the 1950s. He was also a technical adviser to the Los Angeles County Medical Association's "Sabin on Sundays" program that administered the Sabin polio vaccine to children. Wehrle was also known for his research into the impact of air pollution on people. He also wrote textbooks and scholarly articles on infectious diseases and environmental hazards, and served as president of the American Academy of Pediatrics and the International Congress of Pediatrics.
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