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
Donkey milk aspects: spreadability, total appearance, smoothness, moisturisation and total effectiveness . The overall judgement also resulted highest for face cream made with donkey milk Today, donkey milk is still used in the manufacture of soaps and creams with donkey's milk. This product is made to safeguard the highest biological quality of donkey milk, so to preserve its nutritional, functional and cosmetic properties. This is possible because with freeze-dried the milk is frozen and brought under vacuum at low temperatures. During this process the water is removed by sublimation. The result is approximately ten percent of solid substance what is called donkey