About the Authors

Rowena M. A. Packer

Affiliation Department of Production and Population Health, Royal Veterinary College, University of London, Hertfordshire, United Kingdom

Anke Hendricks

Affiliation Department of Clinical Science and Services, Royal Veterinary College, University of London, Hertfordshire, United Kingdom

Holger A. Volk

Affiliation Department of Clinical Science and Services, Royal Veterinary College, University of London, Hertfordshire, United Kingdom

Nadia K. Shihab

Affiliation Southern Counties Veterinary Specialists, Unit 6, Forest Corner Farm, Ringwood, Hampshire, United Kingdom

Charlotte C. Burn

cburn@rvc.ac.uk

Affiliation Department of Production and Population Health, Royal Veterinary College, University of London, Hertfordshire, United Kingdom

Competing Interests

Nadia K. Shihab is employed by Southern Counties Veterinary Specialists. There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: RMAP AH CCB. Performed the experiments: RMAP. Analyzed the data: RMAP CCB. Contributed reagents/materials/analysis tools: RMAP HAV NKS. Wrote the paper: RMAP AH HAV CCB. Diagnosed clinical cases: NKS HAV.