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In the United States, protection of the community against smallpox through routine vaccination of infants and revaccination of older children and adults represents the principal mechanism of defense against the indigenous spread of the disease once introduced. This approach to community protection, as with all practices in preventive medicine, demands continuing reassessment of the potential risk of the disease in comparison to the efficacy and risk associated with preventive procedures.
THE RISK OF INTRODUCED SMALLPOX
The risk of introduction and subsequent transmission of smallpox in the United States is difficult to appraise. Although no recognized cases of smallpox
Smallpox Vaccination: Recommendation of the U. S. Public Health Service Advisory Committee on Immunization Practices. Ann Intern Med. ;66:358–364. doi: 10.7326/0003-4819-66-2-358
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Published: Ann Intern Med. 1967;66(2):358-364.
Bioterrorism Infectious Agents, Infectious Disease, Prevention/Screening, Vaccines/Immunization.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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