40 Years without Smallpox

Shchelkunova, GA; Shchelkunov, SN

Shchelkunov, SN (reprint author), State Res Ctr Virol & Biotechnol VECTOR, Koltsov 630559, Novosibirsk Reg, Russia.; Shchelkunov, SN (reprint author), Novosibirsk State Univ, Pirogov Str 2, Novosibirsk 630090, Russia.

ACTA NATURAE, 2017; 9 (4): 4

Abstract

The last case of natural smallpox was recorded in October, 1977. It took humanity almost 20 years to achieve that feat after the World Health Organiza......

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