My father(64age) is having asthma and diabetes which vaccine he need to take covishield or covaxin, is there any tests need to be done before taking vaccine for asthma patients, I am in full confusion. bharath biotech mentioned in there guidelines people who are having allegeries should not take covaxin. So please suggest me. some people were dying after taking vaccine what may be the reason.

Patient is advised pneumococcal ,infuenza vaccinations every year . Also covishield vaccine is advised to the patient.