Most people with prior SARS-CoV-2 infection or vaccination have T cell immune responses against Omicron variant despite low antibody responses
Even though the Omicron variant of SARS-CoV-2 can escape antibody responses, T cell immune responses are still robust against the variant in most individuals with prior SARS-CoV-2 infection or vaccination, thereby providing protection against severe COVID-19. Some individuals have significantly reduced T cell responses against Omicron despite prior SARS-CoV-2 infection or vaccination, but booster vaccine doses can enhance responses, according to a new study.
Materials provided by Massachusetts General Hospital. Note: Content may be edited for style and length.
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