He does caution that the figures may not be comparable. I don't know the details of the figures, but I can imagine they normally only test children who have bee

He does caution that the figures may not be comparable. I don't know the details of the figures, but I can imagine they normally only test children who have been found to be exposed, so you'd expect higher rates. In Flint they've tested more widely, though of course exposure is wider too.