1. Two Sandfly Fever epidemics are reviewed by a Naval Medical Officer whilst working ashore in a temporary barracks under wartime conditions.2. Sandfly Fever is not a dangerous disease, but under such con- ditions as occurred in Malta - in overcrowded dilapidated barracks - it may assume epidemic form which apart from purely medical and health considerations may cause a huge loss in man hours.. It can be most effectively controlled by Dichloro-Diphenyl-Trichlorethane. A method of using this is described. This insecticide used along with other prophylaxtic methods should prevent such epidemics occurring again.4. In comparing reports on Sandfly Fever one finds diversity of opinion on the aetiology of the disease, on its incubation period, on the period of infectivity in the blood, on the incidence amongst 'natives' and one the relative incidence of its clinical manifestations.6. Observations on 600 cases of Sandfly Fever in Yalta are given, from these and from other reports it appears that Sandfly Fever varies in different areas, this makes one wonder whether those differences are due to different types of viruses causing the disease, or to different vectors (is Phlebotcanus Fapatacii the only vector or not).6. An early or even immediate return to duty does not pre-capitate depression or mental distress, as is suggested in most of the relevant literature
