Before you get vaccinated, tell the person giving you the vaccination if you:
• Have had an allergic reaction, particularly anaphylaxis (a severe allergic reaction) to a previous dose of a COVID-19 vaccine, to an ingredient of a COVID-19 vaccine, or to other vaccines or medications.
• Are immunocompromised. This means that you have a weakened immune system that may make it harder for you to fight infections and other diseases. You can still have a COVID-19 vaccine, but may wish to consider the best timing of vaccination depending on your underlying condition and/or treatment.