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 the聽best vaccines don鈥檛 work in everyone. How do you know if yours has worked?
All of the vaccines in use against聽the coronavirus can cause聽side effects, including a sore arm, fever,聽chills, headache and nausea, usually in the first two days after a聽jab.
These are more common after a聽second dose, and in people who聽have already been naturally infected with the coronavirus, according to
