Though interestingly, it *can* be according the article's summary of the study? ...

		GrinningFool on Feb 20, 2019 \| parent \| context \| favorite \| on: Pee, Not Chlorine, Causes Red Eyes from Swimming P... Though interestingly, it can be according the article's summary of the study? `More than 70 percent of the urine samples contained bacteria, including at least 33 types of bacteria (at the genus level) in normal urine.` This suggests that 30% were sterile.