South African scientists are among teams of world experts trying to find a vaccine for COVID-19. This week they started the first of three vaccine clinical trials that hope to effectively respond to the global pandemic. The trails aim to find a vaccine that will prevent infection by SARS-CoV-2, the virus that causes COVID-19. The vaccine is made from the adenovirus, which is a weakened and non-replicating version of a common cold virus. The vaccine has been engineered to express the SARS-CoV-2 spike protein. Thabile Mbhele reports…

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