About the Authors

Ramona Trebbien

Affiliation National Veterinary Institute, Technical University of Denmark, Frederiksberg C, Denmark

Mariann Chriel

Affiliation National Veterinary Institute, Technical University of Denmark, Frederiksberg C, Denmark

Tina Struve

Affiliation Kopenhagen Diagnostics, Glostrup, Denmark

Charlotte Kristiane Hjulsager

Affiliation National Veterinary Institute, Technical University of Denmark, Frederiksberg C, Denmark

Gitte Larsen

Affiliation National Veterinary Institute, Technical University of Denmark, Frederiksberg C, Denmark

Lars Erik Larsen

lael@vet.dtu.dk

Affiliation National Veterinary Institute, Technical University of Denmark, Frederiksberg C, Denmark

Competing Interests

The study was financed by Kopenhagen Fur, www.kopenhagenfur.com, this, however, does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RT MC TS CKH LEL. Performed the experiments: RT. Analyzed the data: RT MC CKH LEL. Contributed reagents/materials/analysis tools: RT MC TS CKH GL LEL. Wrote the paper: RT. Edited and reviewed the paper: RT MC TS CKH GL LEL.