Page 15 -- Individuals who received COVID vaccination overseas
If a person has received a first dose of a COVID-19 vaccine overseas that is also available in the UK, they should receive the same vaccine for their second dose. If the vaccine they received for their first dose is not available in the UK, the most similar alternative should be offered (see table in Appendix 1). If the vaccine received overseas is not listed in the table, a full course of the appropriate vaccine recommended for the individual in the UK (which may depend on their age) should be given. The recommendations in this table will be reviewed regularly as more vaccines and information about the efficacy of these vaccines becomes available.
The various groups of vaccines are:
Adenovirus (ChAdOx) vector: AstraZeneca, Covishield
mRNA: Pfizer, Moderna
whole inactivated Coronavirus: Sinopharm, Sinovac, Covaxin The other adenovirus-based vaccines (Janssen, Sputnik, CanSinoBio) use different vectors and so are not immunologically the same as either the AstraZeneca or Covishield adenovirus vector vaccines. However, as they, and the Novavax vaccine, are all based on spike protein, the vaccine course can be completed with any of the locally available vaccines as appropriate for the individual’s age.
Please refer to appendix 1page 40 and 41 for alternative vaccines selection.