Submitted to: Diseases of Poultry
Publication Type: Book / Chapter
Publication Acceptance Date: 10/1/2007
Publication Date: 7/1/2008
Citation: Gast, R.K. 2008. Paratyphoid Infections. Diseases of Poultry, 12 edition. Blackwell Publishing, Ames, iowa, pp.636-655.
Technical Abstract: The numerous motile Salmonella serotypes are often referred to collectively as paratyphoid (PT) salmonellae. Found throughout the world, these organisms can infect a very wide variety of hosts (including invertebrate and vertebrate wildlife, domestic animals, and humans) to yield either asymptomatic intestinal carriage or clinical disease. First reported in avian species in 1895 in an outbreak of infectious enteritis in pigeons, PT infections have long been known to cause significant disease losses in young poultry. More recently, PT salmonellae have additionally been identified as important agents of food-borne human disease. Advances in poultry production practices, changes in consumer lifestyles and preferences, and heightened nutritional awareness have all combined to place poultry products among the leading sources of animal protein for much of the world. However, contaminated poultry meat and eggs have also consistently been among the most frequently implicated sources of human Salmonella outbreaks. Controlling PT infections in poultry flocks has thus become an important objective from both the economic and public health perspectives.