Gagajo, if you do seek further employment with a different employer ensure you declare your existing health condition on application for any position.
As as a great many employers and our own company are finding no one can make workplaces 100% safe in regard to Covid-19 infection. All we can do is undertake everything practically feasible to bring about the highest safety possible under the circumstances that exist in the workplace.
Therefore Gagajo, in the above, should you not declare any existing condition on an application for employment then that employer, should he grant you employment, would be entitled to dismiss you for gross misconduct should your health condition become apparent while in employment.