A Nigeria civil servant receives an AstraZeneca coronavirus vaccine, before she is allow access to her office in Abuja, Nigeria , Wednesday, December 1, 2021. Nigeria has detected its first case of the omicron coronavirus variant in a sample it collected in October, weeks before South Africa alerted the world about the variant last week, the country's national public health institute said Wednesday. (Photo by Gbemiga Olamikan/AP Photo)
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