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
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