For people with severely impaired immunity, the coronavirus SARS-COV-2 could still have serious consequences. If their treating specialist advises it, they may be referred for an extra vaccination. For people with severely impaired immunity, this may be their seventh COVID-19 vaccination.
Yes, but in some people with moderately or severely impaired immunity, vaccination is sometimes less effective or does not last as long. They need additional COVID-19 vaccinations to be sufficiently protected against serious illness caused by the coronavirus SARS-CoV-2. The treating specialist can refer people for an extra vaccination.
No, this will not exhaust your immune system. There is no reason to expect that COVID-19 vaccination will have a negative impact on your immune system, in the basic series or in repeat vaccinations.