affiliation not provided to SSRN, affiliation not provided to SSRN, UK Health Security Agency, University of Surrey - School of Veterinary Medicine, University of Surrey, Animal and Plant Health Agency, UK Health Security Agency, University of Surrey, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the United States of America - National Center for emerging and Zoonotic Infectious Diseases, University of Surrey and University of Surrey - School of Veterinary Medicine