Articles
Types of data requested to inform May 2025 COVID-19 vaccine antigen composition deliberations
WHO’s advisory group urges updated COVID-19 vaccines as variants evolve, guiding manufacturers on future vaccine composition.
The WHO Technical Advisory Group on COVID-19 Vaccine Composition (TAG-CO-VAC) continues to closely monitor the genetic and antigenic evolution of SARS-CoV-2 variants, immune responses to SARS-CoV-2 infection and COVID-19 vaccination, and the performance of COVID-19 vaccines against circulating variants. Based on these evaluations, WHO advises vaccine manufacturers and regulatory authorities on the implications for future updates to COVID-19 vaccine antigen composition.
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