- Correspondence to Camilla Leonie Pegram, Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield AL9 7TA, UK;
- Received November 25, 2019
- Revision received April 28, 2020
- Accepted June 17, 2020
- First published July 13, 2020.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.