S OF PAPERS 209 M60 Evaluation of the fomite transmission of two Mycoplasma synoviae genotypes Natalie Armour*SC, Naola Ferguson-Noel University of Georgia, Athens, GA Mycoplasma synoviae (MS) is a prevalent and economically significant poultry pathogen, causing respiratory tract infections or infectious synovitis. MS was identified as the causative agent of an outbreak of severe respiratory di...

This pilot study reports the vertical transmission and reverse thermosensitivity of MS-H vaccine strain Mycoplasma synoviae (MS) by RAPD in commercial breeders their progeny. At two weeks age, were vaccinated with ts+ strain. 9 an outbreak infectious synovitis (IS) was detected Tracheal swab samples collected from at 24, 39, 48, 70 age. weeks, pullets elbow joints collected. performed on isolat...

The novel variant IBDV (nVarIBDV, especially genotype A2dB1) mainly affects broilers in China. It causes an infection characterized by the atrophy of bursa, a decrease level lymphocytes, proliferation fibrous tissue around follicle, and severe follicle bursa. Poultry vaccinated with live vaccines do not have challenge present bursa atrophy, which is misdiagnosed for nVarIBDV because lack other ...