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Military Health System

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Smallpox (ACAM2000)

Jynneos vaccine has replaced ACAM2000 as the only authorized vaccine for pre-event protection against smallpox. See attached memorandum from Deputy Under Secretary of Defense, October 2023.

For information on the military’s current smallpox vaccination program, please navigate to Smallpox (Jynneos).

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Last Updated: March 14, 2024
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