In 1980 the World Health Organization declared smallpox eliminated, a long 21 years after the start of the eradication program. Initial steps focused on mass vaccination in a quest for herd immunity. In developed countries with robust infrastructure, this proved relatively straightforward. This was not the case for developing countries with large numbers of hard-to-reach villages. Once most of the world’s population was immunized, the eradication program switched its focus from a quest for herd immunity through vaccination to early identification of every smallpox case. Once discovered, rapid deployment teams mobilized to the area to immunize everyone within miles of…

Barry P Chaiken, MD

Barry P. Chaiken, MD is writing a book on healthcare information technology using his over 30 years’ experience in the industry.

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