It will probably take several generations (maybe 100 years or more) until people stop eating them? Maybe never. There are always be those, who pine Pinscher away for the past.
He's missing a large piece of the testing puzzle. It is very possible to make an immunoassay with screening ability and do it CLIA waived and cheaply.
You test the hotspots and the symptomatic. Base your strategies on that. The answer would probably be cell phone tracking. In today's scary climate, Americans may put up with that.