Deep Vein Thrombosis (DVT) DHF (Dengue Hemorrhagic Fever) Diabetes Dientamoeba fragilis Infection Diphtheria [Corynebacterium diphtheriae Infection] Diphyllobothrium Infection [Diphyllobothriasis] Down Syndrome [Trisomy 21] Dracunculiasis Dwarf Tapeworm [Hymenolepis Infection]