People who were infected actually need to keep future infections of all kinds to a minimum. This appears to be the long Covid problem. See also opportunistic pathogens/infections.
https://www.aol.com/article/news/2020/10/15/long-covid-may-affect-multiple-parts-of-body-and-mind-doctors-say/24651271/?.tsrc=bell-brknews
Bayzi Corporation introduces the SaniZap®-mini for home use (B to C products 110V).
SaniZap-mini.
What are the geopolitics of vaccine distribution- one view -December 2020