
Parvovirus B19 - IgG antibody









The Parvovirus B19 - IgG antibody test is a blood test that detects IgG antibodies against parvovirus B19. It helps determine past exposure or long-term immunity to the virus, which is responsible for fifth disease (slapped cheek syndrome) in children and can cause complications in pregnant women and immunocompromised individuals.








What does Parvovirus B19 - IgG antibody measure?
The Parvovirus B19 - IgG antibody test measures the presence of immunoglobulin G (IgG) antibodies in the blood. IgG antibodies develop 1-2 weeks after infection and usually remain in the body for life, providing long-term immunity. Their presence indicates that the person had a previous infection or has developed immunity to parvovirus B19.
A positive result generally means past infection or immunity, while a negative result suggests the person has not been exposed and is susceptible to infection. When interpreted with the parvovirus B19 IgM antibody test, results can help differentiate between recent, past, or no infection.





FAQs related to Parvovirus B19 - IgG antibody
- Macri A, Crane JS. Parvoviruses. [Updated 2023 Jun 28]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from:
- Heegaard ED, Brown KE. Human parvovirus B19. Clin Microbiol Rev. 2002 Jul;15(3):485-505. Accessed 26 Aug. 2025]. Available from:
- About Parvovirus B19 [Internet]. CDC; 26 Nov. 2024 [Accessed 26 Aug. 2025]. Available from:
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