- Previously healthy (non-immunosuppressed) community (urban or rural) dwelling adult (ages 19-64 yrs.) reporting no previous medical illness or recent hospitalization (in the preceding 30 days) presenting with acute onset of fever > 38.3° C (101.0° F) for >2 days and lasting up to 14 days and having received no specific treatment for this current illness with antimalarials or antibiotics.
- With history of no localizing symptoms (except accompaniments of fever such as – chills, headaches, retro-orbital pain, myalgia, malaise, nausea or vomiting). On examination found to have normal vital signs (excepting fever) and lacking organ or system specific physical signs*.