The earliest abnormality in the complete blood count is decreased white cell count (leukopenia), which usually occurs during the febrile phase and should alert the physician to a high probability of dengue.  The platelet count usually begins to drop when the temperature is returning to normal and is followed by findings indicative of plasma leakage such as elevated hematocrit level and hypoproteinemia. However, the extent of hemoconcentration may be affected by dilutional effect from excessive fluid administration or significant hemorrhage from the gastrointestinal tract and the white cell count may increase as a result of stress response. Serology and virology<unk>  are used to confirm the diagnosis of dengue virus infection.
Dengue fever laboratory tests
Yellow fever laboratory tests
Rabies laboratory tests
Dengue fever physical examination
Ebola laboratory tests
Chikungunya physical examination
Lassa fever physical examination
Listeriosis laboratory tests