Dengue Fever is on the rise in Asia.About 15000 cases were reported in Vietnam from multiple provinces, mainly Ho Chi Minh city.Singificant increase in Dengue fever case has also been reported in Cambodia and Laos.Travellers are advised to use extra mosquito precautions like sleeping in air-conditioned rooms, wearing long sleeve shirts and pant and most importantly using an approved repellent (Picaridin or DEET).If having fever or feeling sick , travellers should seek immediate medical care.