Im surprised there is no program in place for surveillance testing of vaccinated persons. (At least I wasnt aware of any)
Friend of mine and his wife had 2nd shot 3 weeks ago. Their unvaccinated son went to a party and felt sick. He tested positive. They live in same house together. So far my friend has been tested 3Xs and has been negative.
Its an interesting case study. keep you posted.
Will be interesting data, and will enjoy the updates and hope his son recovers with no ill-effects. There are some going on I'd surmise, but right now the main focus is detecting new cases and getting people vaccinated.
As you've already shown, a proper surveillance study of vaccinated people entails many tests. Considering that to date around 128 million Americans have been vaccinated, even surveillance of 1/100th, 128,000 of them would start entailing the allocation of at least 1 million diagnostic tests, which are still in short supply. To have the study be complete, you'd need to go with the high-sensitivity PCR test and right now, these tests are still better used for their intended purpose.
It's all a matter of priorities, and truthfully, IF there was to be a critical surveillance study, it would be ones like your friend's case IF his son was infected with one of the newer, more contagious variants to assess the vaccine's effectiveness there.