Vaccitech plc wani kamfani ne na ilimin kimiyyar halittu da ke haɓaka alluran rigakafi da rigakafin rigakafi don cututtuka masu yaduwa da kansa, irin su hepatitis B, HPV da kansar prostate. Dandalin kamfanin ya hada da Chimpanzee Adenovirus Oxford ( ChAdOx ) da Modified Vaccinia Ankara (MVA), nau'ikan ƙwayoyin cuta guda biyu waɗanda ke yin kwatankwacin kamuwa da cuta a cikin sel ɗan adam lafiya kuma suna haifar da martanin antibody da T cell ga ƙwayoyin cuta da ciwace-ciwace. An kafa kamfanin a cikin 2016 a matsayin Jami'ar Spin-off ta Sarah Gilbert da Adrian VS Hill a Cibiyar Jenner, Jami'ar Oxford . Google Ventures (GV), Sequoia Capital, GeneMatrix, Liontrust Asset Management, Korea Investment Partners, da Oxford Sciences Innovation (OSI) ne ya ba da kuɗi kuma yana tallafawa Vaccitech. A farkon 2020, Vaccitech da Jami'ar Oxford sun hada gwiwa don ƙirƙirar rigakafin COVID-19 ta amfani da dandalin ChAdOx. A cikin Yuli 2020, an ba da rahoton cewa an dauki mutane a Brazil, Afirka ta Kudu da Amurka don yin gwajin rigakafin.