>>What’s bizarre is no hospital or doctor can tell us if we’re still infectious.

Not so bizarre. There is no test to see if you're infectious - the ones that exist indicate whether you're infected or not. Think about what might be needed to develop an 'infectious' test. What do you test? Maybe breath? Breathing into some kind of collection unit might gather particles that you're emitting, but PCR tests get progressively unreliable as the number of 'multiplication generations' goes up. And it doesn't discriminate between viral fragments and viable viruses. Meanwhile the home tests look for antibodies. If your body isn't producing those anymore, then the virus has been fought off - but that doesn't say anything about whether you're infectious (although you most probably are once the antibodies subside). I'm not a medical pro, but from the virology we've all had to pick up it looks like a difficult problem.