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2003 NOV 5 - (NewsRx.com & NewsRx.net) -- A voluntary smallpox vaccination program is unlikely to provide optimal coverage of the population.
According to a study from Canada and the United States, "The recent threat of bioterrorism has fueled debate on smallpox vaccination policy for the United States. Certain policy proposals call for voluntary mass vaccination; however, if individuals decide whether to vaccinate according to self-interest, the level of herd immunity achieved may differ from what is best for the population as a whole."
"We present a synthesis of game theory and epidemic modeling that formalizes this conflict between self-interest and group interest and shows that voluntary vaccination is unlikely to reach the group-optimal level," reported Chris T. Bauch and collaborators at McMaster University in Canada and the University of California-Berkeley in the U.S. "This shortfall ...