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Arizona Infection, Avian Arizonosis
Arizonosis is a septicemic disease that is found worldwide, caused by the bacterium Salmonella enterica subsp. arizonae (S. arizonae). It has historically been a disease of young turkeys, but it can also infect other domestic and wild birds (including chickens), and a wide variety of different animal species. Arizonosis presents in both acute or chronic form and is characterized by septicemia, neurological signs and blindness. S. arizonae has the ability to elaborate endotoxins, resulting in inflammation in multiple organs most notably in the yolk sac, brain, eye, ceca, and bloodstream of young chicks.
Transmission S. arizonae is an egg-transmitted disease, meaning infected adult breeding birds are usually carriers which spread the bacteria to their young through their eggs. Rodents, wild birds, and reptiles can also transmit S. arizonae into the environment.