Rare (may affect up to 1 in 1000 people):
Temporary one sided facial drooping (Bell’s palsy)
Swelling of the face (Swelling of the face may occur in patients who have had facial cosmetic
injections.)

Frequency unknown:
Severe allergic reactions (anaphylaxis)
Hypersensitivity

Information for UK recipients on COVID-19 Vaccine Moderna – GOV.UK