Gene duplication, gene loss, and recombination events with variola virus shaped the complex evolutionary path of historical American horsepox-based smallpox vaccines

ABSTRACT Vaccinia virus is the active component of all modern smallpox vaccines after the mid-20th century, but it is uncertain to what extent cowpox, vaccinia, and horsepox viruses were used to produce vaccines before then. Genome sequences of six smallpox vaccines used in the United States between...

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Bibliographic Details
Main Authors: Aline R. V. Souza, Annika Brinkmann, José Esparza, Andreas Nitsche, Clarissa R. Damaso
Format: Article
Language:English
Published: American Society for Microbiology 2023-10-01
Series:mBio
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/mbio.01887-23