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