title: Retrospective study of Mycoplasma gallisepticum meningoencephalitis in six turkey flocks in western France.
abstract: Mycoplasma gallisepticum (MG) meningoencephalitis was diagnosed in six turkey flocks, from 1998 to 2005, in the western part of France. Affected birds were 8-11 weeks old and all displayed neurological signs, especially torticollis, with more than half having concomitant respiratory signs. Microscopical examination of brain samples from birds in all six flocks revealed similar lesions of acute to subacute multifocal parenchymal necrosis, perivascular cuffing, leptomeningitis and vasculitis. Birds from four of the six affected flocks were seropositive for MG and in birds from four flocks MG DNA was detected by polymerase chain reaction performed on tracheal swabs or on samples of formalin-fixed and paraffin wax-embedded brain. To our knowledge, this is the first pathological description of naturally occurring cases of turkey MG meningoencephalitis in Europe.
authors.affiliation: Nantes Angers Le Mans University , Oniris, Department of Veterinary Pathology, Nantes, France.
authors.forename: B
authors.initials: B
authors.lastname: Wyrzykowski
authors.forename: O
authors.initials: O
authors.lastname: Albaric
authors.forename: S
authors.initials: S
authors.lastname: Moreau
authors.forename: F
authors.initials: F
authors.lastname: Nguyen
authors.forename: R
authors.initials: R
authors.lastname: Fleurance
authors.forename: S
authors.initials: S
authors.lastname: Belluco
authors.forename: M
authors.initials: M
authors.lastname: Wyers
authors.forename: M-A
authors.initials: MA
authors.lastname: Colle
mesh_terms: D000818:Animals; D001921:Brain / Q000382:microbiology / Q000473:pathology; D004269:DNA, Bacterial / Q000235:genetics; D005602:France / Q000453:epidemiology; D015994:Incidence; D008590:Meningoencephalitis / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D009175:Mycoplasma Infections / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D045686:Mycoplasma gallisepticum / Q000235:genetics / Q000302:isolation & purification*; D009336:Necrosis / Q000473:pathology / Q000662:veterinary; D011201:Poultry Diseases / Q000453:epidemiology* / Q000473:pathology; D012189:Retrospective Studies; D014422:Turkeys
chemical_list: D004269:DNA, Bacterial