I thought this would be a helpful pin because it shows what the diease the main character Cameron had/has. With this picture in mind you can visualize the difficulty it would be for the doctors to find this even more so because this illness is rarely found in humans as it implies in the name its a sickness in cows.
April 24, 2012 – The USDA announces that bovine spongiform encephalopathy ("mad cow disease") was found in a dairy cow in California. Image of a cow with BSE. A feature of such disease is the inability of the infected animal to stand.
This links to Dr. Mecola's article: "Infected Factory Farmed Meat May Be Another Causative Factor for Alzheimer's Disease." http://articles.mercola.com/sites/articles/archive/2014/07/31/alzheimers-mad-cow-chronic-wasting-disease.aspx