Raw milk 2007 and 2016 there was a burden of 144 outbreaks connected to raw milk consumption in the United States. Because raw milk production skips the pasteurization process, the germs that are normally removed remain in the milk product. Exposure to raw milk containing harmful germs poses a threat of infection, including Camplyobacter, Cryptosporidium, E.coli, Listeria, and Salmonella. Additionally, depending on the severity of infection, there may be further threat to human health. Infection has the potential to induce serious illness such as Guillain-Barré syndrome and Hemolytic Uremic Syndrome (HUS). Because of the vulnerability of developing and degrading immune systems, children,
Brucellosis alces"), and marine mammals (see section on aquatic wildlife above). While some regions use vaccines to prevent the spread of brucellosis between infected and uninfected wildlife populations, no suitable brucellosis vaccine for terrestrial wildlife has been developed. This gap in medicinal knowledge creates more pressure for management practices that reduce spread of the disease. Wild bison and elk in the greater Yellowstone area are the last remaining reservoir of "B. abortus" in the US. The recent transmission of brucellosis from elk back to cattle in Idaho and Wyoming illustrates how the area, as the last remaining reservoir in the United