In this Friday, Oct. 1, 2021, file photo, a woman receives her second Pfizer-BioNTech vaccine jab from a health care worker during the inaugural vaccination weekend drive in Katlehong, east of Johannesburg, in South Africa. Senegal and Rwanda have signed an agreement with German company BioNTech for the construction of its first start-to-finish factories to make messenger RNA vaccines in Africa, according to BioNTech Tuesday, Oct. 26, 2021. (AP Photo/Themba Hadebe, File)
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