These people were exposed to raw BLV which may cause leukemia clusters and cancers such as breast, colon, and lymphomas. Up to 50 percent of the cows in a herd may be infected with the bovine immunodeficiency virus and it is in the milk. One study in Norway revealed that people drinking two or more glasses of milk per day had 3.5 times the incidence of cancer of the lymphatic organs. Dairy cows are fed pigs, cow's blood, horses, gelatin, chicken feathers and manure, and garbage from restaurants. One dairyman said if he didn't have chicken manure he would have to sell half his herd because other feed is too expensive.
Cheese is made using rennet from pigs and is often made from unpasteurized milk.
Bacteria and viruses can survive the aging process. Antibiotics are routinely fed to cows causing antibiotic-resistant bacteria in humans. The disease that causes Crohn's disease or inflammatory bowel disease is similar to Johne's disease in cattle and is caused by the same bacteria. It is not killed by present pasteurization temperatures. I believe that thousands of American cattle carry a deadly strain of bovine spongiform that is different than the mad cow disease in Europe.