There are only a small number of differences between the Pfizer/BioNTech and Moderna vaccines.
The differences between the two vaccines are as follows:
- The vaccines contain different additives.
In many respects the two vaccines are similar or the same.
The similarities between the vaccines are as follows:
- Both vaccines are authorised for people aged 12 and over.
- They are both mRNA vaccines.
- Both vaccines have similarly high efficacy of 95 and 94 per cent respectively.
- Both vaccines are well tolerated.
- Two vaccinations are necessary.
- The second vaccination follows around four weeks after the first.
- The second vaccination must be with the same vaccine as the first.
- Both vaccines contain polyethylene glycol (PEG). COVID-19 vaccination is not recommended if you have a serious confirmed allergy.