All are features of dengue hemorrhagic fever expect:
1. Criteria for diagnosis of dengue hemorrhagic fever (DHF): o Fever - acute, high, continuous for 2-7 days. o Positive tourniquet test o Enlargement of liver o Laboratory evidence o Thrombocytopenia (< 1000,000/mm3) o Haemoconcentration (Haematocrit raised by >20%) Narrow pulse pressure is not seen in DHF
Thrombocytopenia
Narrow pulse pressure
Hematocrit elevated
Positive torniquet test.
Virology Pa-2 (RNA Virus Pa-1,2 & Miscellaneous Viruses)