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Uploaded by CollegeofPhysicians on Apr 8, 2010
D.A. Henderson discusses the last case of naturally occurring variola minor, a less severe form of smallpox, which occurred in Somalia in 1976.
Science & Technology
Standard YouTube License
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can i borrow this video for my nhd documentary?
bhuikjh987 2 months ago in playlist More videos from CollegeofPhysicians