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A 41-year-old member asked:

How is chickenpox different from smallpox?

3 doctor answers6 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Different virus: Smallpox has been listed as erradicated by the who.Case fatality rate ran about 30% compaired to <.001%. Blisters were often dime sized and seen on the face early before covering the body. Chickenpox blisters are seen early on the neck & behind the ear and seldom bigger than a pea.
Dr. Harry Greenberg
Dermatology 27 years experience
Different virus: They are different viruses- chicken pox is a herpes virus and smallpox is a pox virus.
Dr. Heidi Fowler
Psychiatry 25 years experience
Smallpox /chickenpox: All naturally occurring smallpox has been eradicated. Incubation is 7 to 17 days for smallpox &amp; 10 to 21 days for chickenpox. With smallpox most lesions are in same stage of development, are more frequent on face &amp; extremities than trunk &amp; are often on soles &amp; palms. With Chickenpox most lesions are on trunk &amp; not on feet/palms. New lesions come up in succession – so they are in different stages

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Last updated Oct 21, 2015

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