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Animal: Broiler chicken, 18-weeks-old Organ: Wattle
History: Several chickens from the same flock started showing swelling and induration of the wattles
Macroscopical findings: Unilateral swollen wattle with a yellow, friable and dull caseonecrotic core on cut surface
Bacteriological examination: Isolation of Pasteurella multocida and Escherichia coli
Histological diagnosis: Wattle: necropurulent and fibrinous dermatitis with granulation tissue formation, chronic, diffuse, unilateral
Name of the disease: (Chronic) fowl cholera
Contributor: Nermin Caliskan, Animal health lab Flanders (DGZ Vlaanderen), BELGIUM