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1 Division of Infection and Global Health Research, School of Medicine, University of St Andrews, St Andrews, UK. Electronic address: mc349@st-andrews.ac.uk.
2 Department of Infection and Immunity, Blizzard Institute, Queen Mary University of London, London, UK; Department of Infection and Immunity, Royal London Hospital, Barts Health NHS Trust, London, UK.
1 Division of Infection and Global Health Research, School of Medicine, University of St Andrews, St Andrews, UK. Electronic address: mc349@st-andrews.ac.uk.
2 Department of Infection and Immunity, Blizzard Institute, Queen Mary University of London, London, UK; Department of Infection and Immunity, Royal London Hospital, Barts Health NHS Trust, London, UK.