As I said on other entry, his schnoz was already infected. I don’t see the CDC doing tap water tests to confirm that it was the source. That, however, is not gonna happen since if it comes up zero the nose washer would be sued for being ineffective.
Yah see, this manufacturer did not bribe the CDC to give them a no-liability emergency license.
You’re not supposed to use tap water with those sinus cleaners to begin with. They specifically tell you to use distilled or purified water, along with their saline packets. They also tell you not to use regular salt.