Authors: Shabir A Madhi; Nigel A Cunliffe; Duncan Steele; Desirée Witte; Mari Kirsten; Cheryl Louw; Bagrey Ngwira; John C Victor; Paul H Gillard; Brigitte B Cheuvart; Htay H Han; Kathleen M Neuzil Journal: Malawi Med J Date: 2016-09 Impact factor: 0.875