Case definition
Acute onset of fever plus at least two of the following:
Vomiting or nausea, rash, headache or retro-orbital pain, arthralgia and/or myalgia, hemorrhagic tendencies (petechiae, positive tourniquet test), leukopenia.
Specimen
Serum specimen in red top tube on ice.
Laboratory
National Public Health Lab
Timeline for investigation
48 hours
Source: National Surveillance Manual