By David Karlin
“The purpose of the study,” Costello explains, “is to look at the amount of aerosol and droplets generated in a variety of different vocal activities, including speaking, breathing, shouting, singing and playing wind and brass instruments. The idea is to compare all of those things with each other and to work out whether more aerosol droplets are produced in singing and when playing brass than in, for example, shouting”. Clearly, if singing produces no more aerosol than shouting, then it’s unreasonable to ban singing while reopening pubs.
Source: BachTrack