They are, for sure. Not this time, only via a test at home which could even be outdated-no- good by now. I got an in-case dose of antibiotics before the trip to Canada, and didn't use it then. Am 99% certain it is doing the trick now. Thanks.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”