I was on Ocrevus for several years, and Briumvi looks to be a cousin of the drug, in a different dosage/time. The DMTs are BCell inhibitors in the simplest way of saying. Ridiculously complicated science, and different ways of getting there. Some of your BCells will be destroyed. You should wear a mask 😷 in crowded areas, but you are fine to walk outside, generally. I would probably not get near anyone sneezing, 🤧 of looking sickly, and tell visitors ZERO viruses allowed on your property! Clean your surfaces, ask your friends and family to respect your light immunocompromised system.