Diploma in Tropical Medicine and Hygiene (London School of Hygiene and Tropical Medicine)The Diploma in Tropical Medicine & Hygiene (DTM&H) is an intensive, three-month, full-time course in tropical medicine and public health for physicians. It combines practical laboratory work, a series of lectures and seminars and some limited clinical experience designed to provide doctors with the clinical and factual knowledge that will form the basis of professional competence in tropical medicine