I exactly don't remember the year but 7 years back my father's not so sure but he says that the doctor said my father is having acute coronary syndrome and he prescribed tablets for them since then he is using those tablets On April 22 he was tested positive for COVID...and now we want to get vaccinated with covaxin Can my father take the jab...is it risky for him!!?please tell me...he gets chest pain sometimes unsure whether it is chest burn or pain.... Can he take covaxin 1st shot Please please tell me