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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Dengue haemorrhagic fever is diagnosed by -
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The correct answer is  <p> Dengue hemorrhagic fever is diagnosed by acute onset of fever ,hemorrhagic manifestation (e.g.positive tourniquet test),platelet count <100,000 cells/mm3. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:250. <\p>