Alice Catherine Evans service worker was protected by law. Alice became interested in the disease brucellosis and its relationship to fresh, unpasteurized milk. Alice's investigation focused on the organism "Bacillus abortus", known to cause miscarriages in animals. Alice learned that the microbe thrived in infected cows as well as animals that appeared healthy. The reports hypothesized that since the bacteria was found in cow's milk, a threat to human health was likely. Evans decided to investigate this; she wondered whether the disease in cows could be the cause of undulant fever in humans. She reported her findings to the Society of American Bacteriologists
A2 milk milk" and "A2 MILK" are trademarks held by the a2 Milk Company. A2 Corporation licensed patents filed in the 1990s by the New Zealand Dairy Board, and filed its own patents on genetic tests to determine what form of beta-casein cows produce in milk, and concerning potential adverse health consequences of A1 milk. The a2 Milk Company holds a worldwide suite of intellectual property to protect its business products, trademarks, trade secrets, and patents covering the genetic test and methods to develop A2 producing herds, as well as methods to check the protein content and fatty acid content of milk,