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HandWiki. Vaccinia. Encyclopedia. Available online: https://encyclopedia.pub/entry/29999 (accessed on 25 September 2026).
HandWiki. Vaccinia. Encyclopedia. Available at: https://encyclopedia.pub/entry/29999. Accessed September 25, 2026.
HandWiki. "Vaccinia" Encyclopedia, https://encyclopedia.pub/entry/29999 (accessed September 25, 2026).
HandWiki. (2022, October 19). Vaccinia. In Encyclopedia. https://encyclopedia.pub/entry/29999
HandWiki. "Vaccinia." Encyclopedia. Web. 19 October, 2022.
Vaccinia
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The content is sourced from: https://handwiki.org/wiki/Medicine:Vaccinia

Vaccinia virus (VACV or VV) is a large, complex, enveloped virus belonging to the poxvirus family. It has a linear, double-stranded DNA genome approximately 190 kbp in length, which encodes approximately 250 genes. The dimensions of the virion are roughly 360 × 270 × 250 nm, with a mass of approximately 5–10 fg. The vaccinia virus is the source of the modern smallpox vaccine, which the World Health Organisation used to eradicate smallpox in a global vaccination campaign in 1958–1977. Although smallpox no longer exists in the wild, vaccinia virus is still studied widely by scientists as a tool for gene therapy and genetic engineering. Smallpox had been an endemic human disease that had a 30% fatality rate. In 1796, the British doctor Edward Jenner proved that an infection with the relatively mild cowpox virus would also confer immunity to the deadly smallpox. Jenner referred to cowpox as variolae vaccinae (smallpox of the cow). However, the origins of the smallpox vaccine became murky over time, especially after Louis Pasteur developed laboratory techniques for creating vaccines in the 19th century. Allan Watt Downie demonstrated in 1939 that the modern smallpox vaccine was serologically distinct from cowpox, and vaccinia was subsequently recognized as a separate viral species. Whole-genome sequencing has revealed that vaccinia is most closely related to horsepox, and the cowpox strains found in Great Britain are the least closely related to vaccinia.

serologically cowpox virus global vaccination

References

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