1 Infectious Diseases & Immunity and Wellcome Trust Imperial College Centre for Global Health Research, Imperial College London, UK; IFHAD: Innovation For Health And Development, Laboratory for Research and Development, Universidad Peruana Cayetano Heredia, Lima, Peru; IPSYD: Innovacion Por la Salud Y el Desarollo, Asociación Benéfica Prisma, Lima, Peru.
2 Infectious Diseases & Immunity and Wellcome Trust Imperial College Centre for Global Health Research, Imperial College London, UK; IFHAD: Innovation For Health And Development, Laboratory for Research and Development, Universidad Peruana Cayetano Heredia, Lima, Peru; IPSYD: Innovacion Por la Salud Y el Desarollo, Asociación Benéfica Prisma, Lima, Peru. Electronic address: carlton.evans@ifhad.org.