A blood test being used to test for covid-19 antibodies VOISIN/PHANIE/SCIENCE PHOTO LIBRARY
To tackle the covid-19 pandemic, we need the most effective vaccines we can get. But even theĀ best vaccines donāt work in everyone. How do you know if yours has worked?
All of the vaccines in use againstĀ the coronavirus can causeĀ side effects, including a sore arm, fever,Ā chills, headache and nausea, usually in the first two days after aĀ jab.
These are more common after aĀ second dose, and in people whoĀ have already been naturally infected with the coronavirus, according to
