PMID- 30322525 OWN - NLM STAT- MEDLINE DCOM- 20190130 LR - 20190130 IS - 1873-2542 (Electronic) IS - 0378-1135 (Linking) VI - 225 DP - 2018 Nov TI - Co-circulation of genetically diverse population of vaccine related and unrelated respiratory mycoplasmas and viruses in UK poultry flocks with health or production problems. PG - 132-138 LID - S0378-1135(18)30139-1 [pii] LID - 10.1016/j.vetmic.2018.09.009 [doi] AB - Respiratory diseases continue to have a major impact on poultry health, welfare and productivity. However, little information is available on their current status in UK poultry flocks. We investigated the presence of four economically important respiratory pathogens in healthy or problematic flocks; infectious bronchitis virus (IBV), avian metapneumovirus (aMPV), Mycoplasma gallisepticum (Mg) and Mycoplasma synoviae (Ms). Samples from 131 UK poultry flocks were received during the 12 month study period. Oropharyngeal (OP) swabs were taken from eight birds per flock and accompanied with flock health information. The study included 118 chicken, 6 pheasant and 5 turkey flocks, and 1 quail and 1 partridge flock. Chicken flocks were of layers (n = 98), broilers (n = 15), breeders (n = 3) and undisclosed (n = 2). Flock ages ranged from 3 to 72 weeks old, and the average flock size was 17,633 birds. PCR detected 65 (49.6%), 59 (45%) and 8 (6.1%) flocks as positive for IBV, Mg/Ms and aMPV respectively. Analysis of the mgc2 gene of the Mg isolates revealed high similarities to Mg TS-11 and Mg 6/85. Further gene analysis found that the TS-11-like isolates were unrelated to the TS-11 vaccine. Multi-locus sequence typing (MLST) analysis identified the majority of positive Ms as ST21, along with ST2 (MS-H-like), ST6 and ST43. IBV S1 gene sequencing identified strains as 793B (66.7%), Arkansas (23.8%) and Massachusetts (9.5%). All aMPV positive samples belonged to subtype B. Findings indicate that over half of the flocks sampled were positive for at least one of the four vaccine or field strains of mycoplasmas or viruses. CI - Copyright (c) 2018 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Ball, Christopher AU - Ball C AD - University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK. FAU - Forrester, Anne AU - Forrester A AD - University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK. FAU - Ganapathy, Kannan AU - Ganapathy K AD - University of Liverpool, Leahurst Campus, Neston, Cheshire, CH64 7TE, UK. Electronic address: gana@liverpool.ac.uk. LA - eng PT - Journal Article DEP - 20180922 PL - Netherlands TA - Vet Microbiol JT - Veterinary microbiology JID - 7705469 RN - 0 (Vaccines) SB - IM MH - Animals MH - Chickens/microbiology/virology MH - Coronavirus Infections/veterinary MH - *Genetic Variation MH - Infectious bronchitis virus/genetics/isolation & purification MH - Metapneumovirus/genetics/isolation & purification MH - Multilocus Sequence Typing MH - Mycoplasma/classification/*genetics/isolation & purification MH - Mycoplasma Infections/epidemiology/microbiology/*veterinary MH - Mycoplasma gallisepticum/genetics/isolation & purification MH - Mycoplasma synoviae/genetics/isolation & purification MH - Poultry/microbiology/virology MH - Real-Time Polymerase Chain Reaction MH - Turkeys/microbiology/virology MH - Vaccines/*adverse effects MH - Virus Diseases/epidemiology/*veterinary/virology MH - Viruses/classification/*genetics/isolation & purification OTO - NOTNLM OT - Avian metapneumovirus OT - Infectious bronchitis virus OT - MLST OT - Mycoplasma gallisepticum OT - Mycoplasma synoviae OT - Poultry OT - RT-PCR EDAT- 2018/10/17 06:00 MHDA- 2019/01/31 06:00 CRDT- 2018/10/17 06:00 PHST- 2018/01/31 00:00 [received] PHST- 2018/08/06 00:00 [revised] PHST- 2018/09/16 00:00 [accepted] PHST- 2018/10/17 06:00 [entrez] PHST- 2018/10/17 06:00 [pubmed] PHST- 2019/01/31 06:00 [medline] AID - S0378-1135(18)30139-1 [pii] AID - 10.1016/j.vetmic.2018.09.009 [doi] PST - ppublish SO - Vet Microbiol. 2018 Nov;225:132-138. doi: 10.1016/j.vetmic.2018.09.009. Epub 2018 Sep 22.