![Two technicians wearing masks and lab coats pipette antibodies at a long desk in a laboratory.](/sites/default/files/styles/thumbnail/public/2023-01/two-technicians-in-a-lab-at-ahri-durban.jpg?itok=y19R8xzk)
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Waldo Swiegers/Bloomberg via Getty Images
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Technicians conduct Covid-19 antibody neutralisation testing in a laboratory at the African Health Research Institute (AHRI) in Durban, South Africa.
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![Two technicians wearing masks and lab coats pipette antibodies at a long desk in a laboratory.](/sites/default/files/2023-01/two-technicians-in-a-lab-at-ahri-durban.jpg)
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