1. University College London; Division of Infection and Immunity; Gower Street London UK WC1E 6BT
2. Pennine Acute Hospitals NHS Trust; Department of Infectious Diseases; North Manchester General Hospital Delaunays Road, Crumpsall Manchester UK MB 5RB
3. Cochrane; Cochrane Response; St Albans House 57-59 Haymarket London UK SW1Y 4QX
4. University of Malawi College of Medicine; Malawi-Liverpool-Wellcome Clinical Research Programme; P. O Box 30096 Blantyre Chichiri Malawi
5. Liverpool School of Tropical Medicine; Department of Clinical Sciences; Pembroke Place Liverpool Merseyside UK L3 5QA