How do you get from checking a public health list generated by the CDC to TSA practicing medicine? Personally I didn't know, or should say don't know, that the CDC maintains and publishes a list of individuals with certain diseases but I suppose that's possible. Considering how flakey the disease reporting system is I can't imagine it's a very accurate or maybe even current list but I'd assume it's not simply something like having the flu and would have to be something like TB.