Where Does Smallpox Come From. Smallpox is caused by exposure to the variola virus. The variola virus emerged in human populations thousands of years ago.Except for laboratory stockpiles, the variola virus has been eliminated.mallpox is caused by exposure to the variola virus. The variola virus emerged in human populations thousands of years ago.
ISL is the NATO country code for Iceland. French-German Research Institute of Saint-Louis, a military research centre. In mathematics, i.s.L. can stand for in the sense of Lyapunov. In resources mining, ISL stands for In-situ leaching, a mining technique.ll you need is love, Love-Love is all you need. Could be any of the below or more. ISL-Institute for Sales Training and Leadership Development, international consulting and training institute.
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