My sibling in Ohio was diagnosed with late stage Polycystic Kidney Disease in Ohio, which may put him at high risk for Covid-19. His employer is not taking appropriate actions to ensure his safety, and are not enforcing cleanliness. They make jokes and will "cough" and come within 3 feet of him which has made him afraid for his health, and potential life for that matter. His nephrologist will not help and has refused to give him a letter stating he is high risk and needs to self quarantine, so that he can apply for unemployment during self quarantine. Need advice on what we can do.
Your brother should contact an Ohio employment lawyer. The law on Ohio unemployment as well as working from home and other employee rights during the pandemic is rapidly evolving. It sounds like there might be some discrimination or harassment happening at his workplace.
Specific information about your brother's situation at work will be needed to know what options he has.