To minimize the risk of infection, all volunteers were tested for the coronavirus in advance, and had their temperatures checked upon arrival. Outfitted with their tracking devices, masks and fluorescent disinfectant, they were then asked to simulate different concert scenarios over the course of 10 hours: one with no social distancing, another with moderate safety measures and a third with strict ones. Using trackers, the staff monitored the number of times attendees came close to one another, and later used ultraviolet lamps to determine which surfaces were covered with the most fluorescent disinfectant by the end of the day. Dr. Moritz said that the most intriguing finding likely would be related to aerosol spread. Scientists have recently confirmed that the virus can remain suspended in the air, possibly for hours in closed environments.
Source: New York Times August 23, 2020 18:45 UTC