(1) Depends on the impact and symptoms the disease causes. (2)...

(1) Depends on the impact and symptoms the disease causes. (2) covid-19 is new and there still much we're learning about it. What is known is it is highly infectious and on current world reportings, has a mortality rate of 4.5%.

You can use zno and eg soap, but seems to defeat the purpose of zno. That's my point. Furthermore, i'm not sure i'd trust that after two soap washes, that there is still enough of a protective film layer in between to protect against covid-19 so defeats zno's purpose. Again, just my thoughts.