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adult receiving a vaccination with a jet injector during the swine flu nationwide vaccination campaign

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this woman is being vaccinated for smallpox during a 1968 african vaccination campaign

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swine flu vaccination campaign begun on october 1 1976

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number of eradication campaign officials who were meeting to discuss strategies

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eradication campaign officials who were meeting to discuss strategies

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during the bangladesh smallpox eradication campaign

标签: during,the,bangladesh,smallpox 浏览: 1

people at meeting instructional campaign centered on the education

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