Damn. "An unexamined assumption has led to erroneous policy conclusions about the risks of singing... and the benefits of increased levels of ventilation. Although never publicly identified, one individual bears the moral burden of knowing what health outcomes have been attributed to their actions. We call for these claims to be re-examined and for greater ethical responsibility in the assumption of a point source in outbreak investigations." https://www.sciencedirect.com/science/article/pii/S0033350622003237 #COVID19 #ventilation