Do all vaccine doses need to be of the same brand and vaccine composition?

For Pfizer-BioNTech/Comirnaty, Moderna/Spikevax or Novavax/Nuvaxovid*, your first two doses of vaccine should be of the same brand. Subsequent doses of vaccine can be of different brands, where applicable.

From time to time, the composition of a COVID-19 vaccine may be updated to target more recent virus variants. If you are due for a vaccine dose, you are recommended to receive the updated version of the vaccine. There is no need for your vaccine doses to be of the same composition.

*The Novavax/Nuvaxovid vaccine is currently unavailable under the National Vaccination Programme. Novavax is in the process of filing for regulatory approval for its updated COVID-19 XBB.1.5 vaccine formulation.