Yoga Classes Low Risk for Covid-19 Infections?

As fitness and yoga classes start to reopen we came across this interesting article from the Centers for Disease Control. In the yoga group, no students caught Covid-19, even though their instructor was infected. Other factors may be relevant, and the study isn't definitive, but it does suggest that low intensity yoga is relatively low risk, compared to vigorous group exercises in a confined space. This is reassuring news.