The personal evidence of my kid's schools. Three kids, three schools. So, yeah, small N. I'm confused on the particular study you picked. The main claim for

The personal evidence of my kid's schools. Three kids, three schools. So, yeah, small N. I'm confused on the particular study you picked. The main claim for positive evidence "supports the use of negatively pressurized isolation rooms for patients with these diseases in hospitals" but it goes on to basically acknowledge we still need more information in larger environments. Specifically, in the abstract, "However, the lack of sufficient data on the specification and quantification of the minimum ventilation requirements in hospitals, schools and offices in relation to the spread of airborne infectious diseases, suggest the existence of a knowledge gap." I'm all for more studies. And, again, I expect and hope we learn more.