This is because of the specific immunological response the body mounts to Q Fever (which would happen with a repeat infection) if a person already has antibodie

This is because of the specific immunological response the body mounts to Q Fever (which would happen with a repeat infection) if a person already has antibodies, not because vaccinating someone who has already had the condition being vaccinated against has some inherent triggering effect that is detrimental. There is no good reason to perform a similar screening in the case of SARS-CoV-2 and there is good reason TO vaccinate because the vaccine is more consistently protective against hospitalisation and death compared to an infection of the same