How is chickenpox different from smallpox?

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.

Different virus: They are different viruses- chicken pox is a herpes virus and smallpox is a pox virus.

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