Know why: Some people don't get vaccine side effects and that's OK

Most COVID vaccines, including several that have been authorised, use a viral protein found on the outer envelope of the coronavirus, known as the spike protein, to mimic a natural viral infection and initiate an immune response

Related Keywords

,Pfizer ,Representative Photo ,Different Immune ,ஃபைசர் ,பிரதிநிதி புகைப்படம் ,