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Scientific and Policy Considerations in Developing Smallpox Vaccination Options Nora Sforza el del turismo y elScientific and Policy Considerations in Developing Smallpox Vaccination Options At the World Health Assembly in May 1980, the World Health Organization declared the world free of smallpox. Smallpox vaccination of civilians is now indicated only for laboratory workers directly involved with smallpox or closely related orthopox viruses. However recent questions raised by the terrorist attacks in fall 2001 have renewed concerns about possible outbreaks
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