United States raw milk debate temperatures may be used by different processors, pasteurization is most commonly achieved with heating to 161 degrees Fahrenheit (71.7 degrees Celsius) for 15 seconds. Milk is tested following pasteurization to confirm that bacteria have been killed to an acceptable level. Pasteurization kills pathogenic bacteria which occasionally may be present in milk, including those causing tuberculosis ("Mycobacterium bovis"), listeriosis ("Listeria monocytogenes"), Q fever ("Coxiella burnetii"), brucellosis ("Brucella"), campylobacteriosis ("Campylobacter"), salmonellosis ("Salmonella"), and several other foodborne illnesses (e.g., ). Pasteurization may not kill some resistant bacteria, which can eventually cause souring and spoilage of fresh milk. UHT pasteurization (Ultra High Temperature) is
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