The Head of the National Institute of Infectious and Tropical Diseases, Nguyen Hong Ha, said on August 18 that the dengue fever has reached its peak along with A/H1N1 super flu.

Most patients admitted to hospital are in a serious condition and 62 percent of them are pupils and students in the age of 16-30. The spread of the disease among them is attributed to their dark and stuffy lodgings swarming with mosquitoes.