Hi doctors. could you please advise..what would have to happen in order for it to be deemed medically safe to not need to wear masks and to be able to visit family/friends without concerns about making them sick?

Medically safe: Vaccine. Until one is invented and both parties are inoculated the risk of infection will not abate. Doesn’t matter if it's a friend, relative, coworker, neighbor, spouse, child, postman, grocery clerk, etc. Wear a mask, wash hands, maintain social distancing from everyone...everyone..., avoid crowds, and get vaccinated as soon as vaccine is available