If you are concerned about water and COVID-19.

[FreepFryer]

7. Given SARS similarities, plumbing could be an (unlikely) vector.

It was never conclusively proven, if I recall - but the concern persists.

The SARS virus that infected hundreds of people in a 33-story Hong Kong apartment tower probably spread in part by traveling through bathroom drainpipes, officials said yesterday in what would be a disturbing new confirmation of the microbe's versatility.

The possible explanation for what has been one of the most baffling and worrisome outbreaks in the epidemic indicates that the virus can be transmitted in ways other than close person-to-person contact.

"The possibility that the virus could by aerosol move through a vertical pipe through other pipes . . . into the air and affect so many people, that's not comforting," said Klaus Stohr, who is leading the World Health Organization's scientific efforts against SARS -- severe acute respiratory syndrome.

Stohr stressed, however, that even if the virus can spread through plumbing or in other ways, the pattern of the epidemic so far indicates that would occur only rarely.

https://www.washingtonpost.com/archive/politics/2003/04/18/in-hong-kong-apartment-tower-sars-virus-spread-through-plumbing/99bcd25f-de85-472a-b084-4f847e0dac9a/