Virus: Ventilation key in Confined spaces, say USA's CDC

[Aurora]

USA's Public Health Authority CDC, has just published a new Sanitory protocol against the Virus, which makes it clear that "Confined spaces with Insufficient Ventilation from Outdoors" Oxygen present a serious Risk of Infection, through simply Breathing the Air, where already affected individuals may have crossed, even Hours Before.

Recent Facts clearly indicate that this is More Dangerous than even Touching various Contaminated Surfaces (Tissues, Paper,  Wood, Metal, Plastic, etc).