United States raw milk debate prior to symptom onset." Milk collected or stored in unsanitary conditions may harbor a host of disease-causing organisms (pathogens), such as "tuberculosis" (Mycobacterium bovis), the bacteria "Campylobacter" (Campylobacteriosis), "Escherichia" E. coli O157:H7), "Listeria" (Listeriosis), "Salmonella" (Salmonellosis), "Yersinia" (Yersinia enterocolitica), and "Brucella" (Brucellosis). Pasteurization consistently removes all of these pathogens, though they can be reintroduced if the product is handled carelessly. Thus dairy farms that pasteurize their milk can have unsanitary facilities without the attendant outbreaks of disease that would occur if a raw milk dairy kept its herds in similar unsanitary conditions. People with weakened immune systems, such as elderly,
X2: The Threat of what it sets out to do." X2: The Threat X2: The Threat (stylized as X²: The Threat) is a space simulation video game developed by Egosoft for Windows, Linux, and Mac OS X. It is part of the X Computer Game Series. It was released in 2003 and is a sequel to "". Freeverse Software ported the game to Mac OS X in 2004/2005, while Linux Game Publishing produced their Linux port in 2005/2006. The sequel to this game is "" (2005). As with the originals, "X2: The Threat" is a Space trading and combat simulator set in the