[1] Publ Hlth England, Ctr Infect Dis Surveillance & Control, HIV & STI Dept, London, England
[2] Publ Hlth England, Ctr Infect Dis Surveillance & Control, Modelling & Econ Unit, London, England
[3] Imperial Coll London, MRC Ctr Outbreak Anal & Modelling, London, England
[4] Imperial Coll London, Dept Infect Dis Epidemiol, Hlth Protect Res Unit Modelling Methodol, London, England
[5] Univ Cambridge, Dept Plant Sci, Cambridge, England
[6] Publ Hlth England, Ctr Infect Dis Surveillance & Control, Immunisat Dept, London, England
[7] London Sch Hyg & Trop Med, London, England