Brucella include arthritis or epididymo-orchitis, spondylitis, neurobrucellosis, liver abscess formation, and endocarditis, the latter potentially fatal. Human brucellosis is usually not transmitted from human to human; people become infected by contact with fluids from infected animals (sheep, cattle, or pigs) or derived food products, such as unpasteurized milk and cheese. Brucellosis is also considered an occupational disease because of a higher incidence in people working with animals (slaughterhouse cases). People may also be infected by inhalation of contaminated dust or aerosols, and as such, the CDC has labeled "Brucella" species as highly weaponizable. Human and animal brucellosis share the persistence of
Raw milk pathogen risk. Producers of raw milk for sale to consumers must be registered. Raw milk must either be collected by the purchaser from the producer's farm or delivered to the purchaser's home. Raw yak milk is allowed to ferment overnight to become yak butter. Some cheeses are produced with raw milk although local statutes vary regarding what if any health precautions must be followed such as aging cheese for a certain amount of time. A thick mixture known as Syllabub was created by milkmaids squirting milk directly from a cow into a container of cider, beer, or other beverage. Raw