During the first week of infection, Dengue can be best detected by:
High-Yield Explanation
Dengue: - Caused by Group-B Arbovirus - D1, D2, D3, D4 - Vector - Aedes aegypti - Reservoir - Man, Aedes - Incubation period - 3 to 10 days - Diagnosis: Clinically - Torniquet test - >= 10 spots - Dengue fever ; >= 20 spots - Dengue hemorrhagic fever. Serologically - NS-1 Antigen Test comes positive even in 1st week. - Presentation: Dengue fever Dengue hemorrhagic fever Dengue shock syndrome - Backbone fever - Fever - Hemorrhagic features - Thrombocytopenia - Hemo-concentration - DHF +ve - Shock - Vaccine : DENGAVARIA , Strain: CYD - TDV ; recommended in age groups 9-45yrs