Dengue haemorrhagic fever is diagnosed by -
High-Yield Explanation
<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>