Originally Posted by
Mike Jacoubowsky
Not only that, but there is a movement away from antigen tests in general, so past acceptance (of antigen tests) means nothing. If traveling overseas, do not rely on an antigen test to pass entry requirements. Presently the only thing they are absolutely good for is entry back into the US, and as I said in another post, that could change if the US and EU come to terms and adopt a common standard for entry (full vaccination + PCR test within 72hr of departure would be the obvious choice).
However, many of the tests that are quick/cheap/readily available are antigen. For places and events that require a recent negative test, as a practical matter, antigen would make more sense even if it's less accurate. We don't have unlimited PCR testing resources.
Meanwhile, within the USA, I haven't yet noticed any testing requirements for schools, sports teams, etc. that specify PCR tests, although my impression is that sports teams would confirm positive antigen tests with PCR tests.