36F, 230 lb, 5’9” Asthma, allergies (environmental)
Is it possible to have an elevated IgG only from a very recent dengue infection? Or are there other illnesses which may cause the high dengue IgG but not IgM?
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- February 2024: IgG- 1.40, IgM- 0.60
- May 3-14: Trip to São Paulo, Brazil, where there is a lot of active dengue spread currently
- May 15: flu-like symptoms started, tested negative on flu rapid (May 17) and Covid PCRs (May 16 and 20)
- May 17: IgG- 2.72, IgM- 0.98
- May 29: IgG- 3.06, IgM- 1.06
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IgG reference * 1.64 IV or less .......... Negative-No significant level of detectable Dengue Fever Virus IgG antibody. * 1.65 - 2.84 IV ........... Equivocal-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.
IgM reference * 1.64 IV or less: Negative - No significant level of detectable dengue fever virus IgM 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 - IgM antibody to dengue fever virus detected, which may indicate a current or recent infection.
My IgG was negative before my trip and positive now though?
Dengue- high IgG but not IgM
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