Great, then they'll never get a handle on it. We had to furnish proof of vaccinations, and in some cases, recent boosters, for our kids at every school level, including college.
I guess that's an offense against civil rights nowadays, as we rapidly descend to third-world standards.
I believe your general idea is right, but I thought about it another way too. I put the emphasis on the word "identify" -- it's a statement about identifying who they already know was a vector.
There is something to be said for privacy of an individual's medical records. However, this privacy should end if the person is a contagious disease carrier, just like it ends for many sex offenders.
For our current fed-heavy health care laws, thank Hillary Clinton and her HIPAA brainchild. Someone has to come forth from the federal government and ok the release of the information "for the public good" when they d@mn feel like it.