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Pullorum Disease

Pullorum Disease

Written by: Dr. Jacquie Jacob, University of KentuckySource: https://articles.extension.org/pages/68109/pullorum-disease-in-poultryPullorum disease, also called Salmonella pullorum and bacillary white diarrhea (BWD), is caused by the bacterium Salmonella pullorum. Although chickens are natural hosts of Salmonella pullorum, other birds can also become infected. There have been reports of infections in turkeys, quail, guinea fowl, pheasants, ducks, pigeons, sparrows, canaries, bullfinches, and parrots. Infection by Salmonella pullorum has also been reported in pigs, cattle, cats, dogs, foxes, mink, rabbits, and guinea pigs.Pullorum disease can be introduced into a flock by wild birds, mammals, and flies. Within a flock, infection is spread by bird-to-bird contact, as well as through cannibalism of infected carcasses, wound contamination, and fecal contamination of feed, water, and litter. More importantly, the bacteria can be transferred through the egg, so chicks hatched from an infected flock can also be infected. A hen that has recovered from pullorum disease typically passes on the bacteria to one-third of her eggs.
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