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U.S. DepartmentofDefense

Swine Flu Strain

Swine flu strain virus particles: Colorized transmission electron micrograph of negatively stained SW31 (swine strain) flu virus particles. National Institute of Allergy and Infectious Disease photo

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Credit: National Institute of Allergy and Infectious Disease VIRIN: 160129-D-CX348-004.JPG

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The Department of Defense provides the military forces needed to deter war and ensure our nation's security.

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Swine Flu Strain

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