Social & Preventive Medicine Dengue haemorrhagic fever is diagnosed by – A Acute onset of high fever, presence of petechiae, epistaxis platelet count>2 lakh B Acute onset of high fever, positive tourniquest test, epistaxis ormalena and malena and platelet count>1.5lakh C Acute onset high fever 2 to 7 days, associated with hemorrhagic manifestation e.g hemoptysis and platelet count less than 1.5lakh D Acute onset of high fever, positive tourniquet test, bleeding gum and platelet count less than 1.0lakh 💡 Explanation Dengue haemorrhagic fever is diagnosed by - ✓ Correct Answer: D. Acute onset of high fever, positive tourniquet test, bleeding gum and platelet count less than 1.0lakh