My next question is for Dr. Bogoch. I know you want to talk about phage.
We spend a lot of time focusing on the 100-plus or so bad bacteria that want to kill us. We have a lot of good bacteria.
How do we strike that balance on disinfectant and controlling bad bacteria but making sure that we're not wearing down the good bacteria that can also help fight disease?
Where are we in terms of thinking on the environment, open air hospitals, operating rooms and things like that? How do we strike that balance, and where are we in that regard?