Dengue Virus by PCR

Dengue Virus by PCR is used to diagnose dengue fever caused by dengue virus, especially after a journey to tropical areas.

Results and Meanings:

  • Positive: There is dengue infection.
  • Negative: There may be no dengue infection. Antibody testing is needed.

Antibody Testing Results and Meanings:

Antibody (IgG, IgM) Testing results can be presented in two ways:

Positive or Negative:

  • Positive: It’s likely that the dengue infection happened within recent weeks. But it’s also possible that it is a different infection caused by other viruses, such as chikungunya.
  • If the IgG test result is positive while the IgM is negative, it may indicate that there used to be a dengue infection.

Antibody Titer:

IgM Result IgG Result Possible Interpretation
Positive Negative Current Infection
Positive Positive Current Infection
Negative/Low/Not Tested Four-fold increase Recent Infection
Negative Positive Past Infection
Negative Negative Equivocal


Keywords: Dengue Antibodies (IgG, IgM), Dengue Virus by PCR, Dengue Fever Antibodies, Dengue Fever Testing, Dengue Fever Virus

* The contents of this HTQ Site are for informational and communicational purposes only. The information provided by HTQ, HTQ employees, others appearing on the Site at the invitation of HTQ, or other visitors to the Site is NOT a medical advice.The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on the HTQ Site!