The Incubation Period of Beef Contamination

It's been seven years since these people ate the contaminated beef. The median age of these 10 cases is 28. But it's not clear to me why it's happening in children. It's a weird timeline because the mad cow panic in America really like peaked in 1996 when Oprah was doing her episode and then fell pretty quickly. Once people figured out that there had never been a case of mad cow in America and there was no human case of madcow in America ever either, this remained an extremely British phenomenon. To this day, 140,000 cattle in Britain were diagnosed with mad cow and in Portugal, it's like 200.