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About: COVID-19 vaccine clinical research     Goto   Sponge   NotDistinct   Permalink

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COVID-19 vaccine clinical research uses clinical research to establish the characteristics of COVID-19 vaccines. These characteristics include , and safety. As of November 2022, 40 vaccines are authorized by at least one national regulatory authority for public use: As of June 2022, 353 vaccine candidates are in various stages of development, with 135 in clinical research, including 38 in phase I trials, 32 in phase I–II trials, 39 in phase III trials, and 9 in phase IV development.