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1 December 2008 Facial Cellulitis Induced in Chickens by Mycoplasma gallisepticum Bacterin and Its Treatment
Rocio Crespo, Richard McMillan
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Abstract

Ten-to-14-day-old replacement chickens were vaccinated subcutaneously in the neck with a Mycoplasma gallisepticum bacterin. A few days later, 40% of the flock developed cellulitis of the head. Birds were submitted for diagnostic investigation between 4 and 6 wk of age. Histology revealed lesions in the subcutis consistent with oil-emulsified vaccine/bacterin reaction. No significant bacteria were isolated from the lesions. Birds were treated with 1 mg of methyl prednisol acetate intramuscularly. Improvement was noted as early as 12 hr posttreatment. One week after treatment only 1%–2% of the flock still had facial cellulitis.

Abbreviations: AI = avian influenza; IBD = infectious bursal disease; MG = Mycoplasma gallisepticum

Reporte de Caso—Celulitis facial inducida en aves por la bacterina y el tratamiento contra Mycoplasma gallisepticum.

Aves reproductoras de 10 a 14 días de edad fueron vacunadas por la vía subcutánea en la nuca con una bacterina contra Mycoplasma gallisepticum. Pocos días después, el 40% de la parvada desarrolló celulitis en la cabeza. Las aves fueron enviadas para la investigación diagnóstica entre las 4 y las 6 semanas de edad. La histología reveló lesiones subcutáneas asociadas con la reacción a la emulsión oleosa de las vacunas o bacterinas. No se aislaron bacterias importantes de las lesiones. Las aves fueron tratadas con un miligramo de prednisolona por la vía intramuscular. Se observó una mejoría a partir de las 12 horas después del tratamiento. Una semana después del tratamiento sólo el 1% al 2% del lote mostraba aún celulitis facial.

Rocio Crespo and Richard McMillan "Facial Cellulitis Induced in Chickens by Mycoplasma gallisepticum Bacterin and Its Treatment," Avian Diseases 52(4), 698-701, (1 December 2008). https://doi.org/10.1637/8342-050108-Case.1
Received: 2 May 2008; Accepted: 1 June 2008; Published: 1 December 2008
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