Coronavirus Disease 2019 (COVID-19)

[Undertoad]

Possible infections via ventilation systems and other means has not been mentioned - and should be. Since we need such facts - to even avoid panic.

Exactly: we need facts we don't have, in order to avoid panic!

(Since it's not proven whether ventilation systems can transmit it -- but like my CDC text noted, most cases are from close contact of 6 feet or less)