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What are the main purposes of a smallpox vaccination?

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Initially, the terms vaccine/vaccination referred only to smallpox, but in 1881 Louis Pasteur proposed that to honour Jenner the terms be widened to cover the new protective inoculations being introduced. read more

Small stocks of the virus remained in secure laboratories and some other laboratories were allowed to maintain stocks of up to 20% of the genome sequence for the purpose of international research. An emergency stock of smallpox vaccine (vaccinia) was kept in deep freeze in certain locations. read more

The story of smallpox prevention — and its eventual eradication through immunization — is a long and compelling one. read more

Vaccination became widely accepted and gradually replaced the practice of variolation. At some point in the 1800s (the precise time remains unclear), the virus used to make the smallpox vaccine changed from cowpox to vaccinia virus. read more

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The Smallpox Vaccine
www.health.ny.gov