Lance Turtle a, b, h aDepartment of Clinical Infection, Microbiology, and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom bTropical and Infectious Disease Unit, Royal Liverpool University Hospital, Liverpool, United Kingdom cDepartment of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden dLiverpool School of Tropical Medicine, Liverpool, United Kingdom eInstitute of Naval Medicine, Alverstoke, Hampshire, United Kingdom fDepartment of Cellular Pathology, Royal Liverpool University Hospital, Liverpool, United Kingdom gDepartment of Colorectal Surgery, Royal Liverpool University Hospital, Liverpool, United Kingdom hNIHR Health Protection Research Unit for Emerging and Zoonotic Infections, University of Liverpool, Liverpool, United Kingdom