Super exciting stuff and it got me thinking: could we genetically engineer bacteria to get rid of morning breath? I would like to think (and so does my dentist) I have very good oral hygiene* and I get regular checkups where everything is fine but when I wake up the taste in my mouth and my breath are really unpleasant. The last time I had to be on antibiotics for a longer time I noticed it was severely lessened but came back just as strong after.

* My routine includes brushing my teeth 3x per day for 3 minutes with an ultrasonic toothbrush, I use an interdental brush at night, I use a tongue scraper in the morning and at night and I do an occasional chx mouthwash and semi-regular salt water rinses.