Isao Arita
Successful WHO smallpox eradication is considered to be the unprecedented event in history of human evolution, namely human species’ long struggle with vicious pathogen termed variola or smallpox. The victory resulted from human efforts, firstly recent scientific discovery of vaccine and epidemiological strategy to interrupt the smallpox transmission and secondly the human species’ joint effort to eradicate smallpox despite difference in nationality, race, religions and politics worldwide. In this article, specifically the second elements are discussed in view of Charles Darwin’s struggle for existence and natural selection and his few followers’ opinions that human genome may have an important role in evolution process, for instance, of ethics, morality, as expressed in” Nature via Nurture”: Genes, experience, what makes human. Since the time unmemorable human species suffered considerable tragedy of smallpox disaster, themselves as well as their family and friends without knowing how to escape: Perhaps their ancestors sad memories could have influenced the minds of the staff or villagers, how to contribute themselves for rescuing their fellow human species: Please read and think for the future of human species.