Dengue Fever Virus Ab, IgG
Commercial Mailout Laboratory
|Red top tube 5 mL (Clot Activator)
Preferred Minimum: 1.0 mL serum
Absolute Minimum: 0.1 mL serum
Contaminated, heat-inactivated, hemolyzed, or severely lipemic
Submit specimen to laboratory as soon as possible after
collection period is completed.
1-4 days upon receipt at reference laboratory
1.64 IV or less: Negative - No significant level of detectable dengue
fever virus IgG antibody.
1.65-2.84 IV: Equivocal - Questionable presence of antibodies. Repeat
testing in 10-14 days may be helpful.
2.85 IV or greater: Positive - IgG antibody to dengue fever virus
detected, which may indicate a current
or past infection.
Patients in the early stage of dengue fever virus infection may not
have detectable IgG antibodies, as the IgG response may take several
weeks to develop. In the absence of detectable IgG, testing for IgM
class antibody is strongly recommended. The best evidence for current
infection is a significant change on two appropriately timed specimens,
where both tests are done in the same laboratory at the same time.
Acute and convalescent specimens must be labeled as such parallel
testing is preferred and convalescent sample must be received within 30
days of acute.
Semi-Quantitative Enzyme-Linked Immunosorbent Assay