‘Is it safe to have more than one type of COVID vaccine?’ and other questions answered by an immunologist | Gavi, the Vaccine Alliance https://www.gavi.org/vaccineswork/it-safe-have-more-one-type-covid-vaccine-and-other-questions-answered-immunologist?fbclid=IwAR0Ig_tZ7d80YIVKcFV4LSAMqi5_VVvPokUgkl-Bj1f2FmsKRsjPXT-OIzY