Elizabeth A Ashley1, Aung Pyae Phyo2. 1. Lao-Oxford-Mahosot Hospital-Wellcome Research Unit, Microbiology Laboratory, Mahosot Hospital, Vientiane, Laos; Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK; Myanmar Oxford Clinical Research Unit, Yangon, Myanmar. Electronic address: liz@tropmedres.ac. 2. Myanmar Oxford Clinical Research Unit, Yangon, Myanmar.