
Cytomegalovirus IgG Antibody









A Cytomegalovirus IgG Antibody is a blood test that helps to detect the presence of specific antibodies immunoglobulin G (IgG) produced by the body in response to Cytomegalovirus (CMV). This test helps determine if an individual has been previously exposed to the CMV virus indicating a past infection.








What does Cytomegalovirus IgG Antibody measure?
A Cytomegalovirus IgG Antibody test measures the presence of IgG antibodies in the blood, indicating a previous CMV infection. IgG antibodies are produced several weeks after the initial CMV infection. IgG levels rise during the active infection, then stabilize as the CMV infection resolves and the virus becomes inactive. Once exposed to CMV, you will have some measurable amount of CMV IgG antibody in your blood for the rest of your life, which provides protection from getting another primary infection (immunity). However, if you have a weak immune system, the virus can reactivate and cause serious symptoms or organ damage.





FAQs related to Cytomegalovirus IgG Antibody
- About Cytomegalovirus (CMV) [Internet]. CDC; 18 Aug. 2020 [Accessed 09 Feb. 2024]. Available from:
- Cytomegalovirus (Blood) [Internet]. Rochester, NY: University of Rochester Medical Center; [Accessed 09 Feb. 2024]. Available from:
- Gupta M, Shorman M. Cytomegalovirus. [Updated 2023 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from:
- Akpan US, Pillarisetty LS. Congenital Cytomegalovirus Infection. [Updated 2023 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from:
- Munro SC, Hall B, Whybin LR, Leader L, Robertson P, Maine GT, Rawlinson WD. Diagnosis of and screening for cytomegalovirus infection in pregnant women. J Clin Microbiol. 2005 Sep;43(9):4713-8. [Accessed 09 Feb. 2024]. Available from:
- Ross SA, Novak Z, Pati S, Boppana SB. Overview of the diagnosis of cytomegalovirus infection. Infect Disord Drug Targets. 2011 Oct;11(5):466-74. [Accessed 09 Feb. 2024]. Available from:
- Udeze A, Odebisi-Omokanye M, Ajileye T. Cytomegalovirus infection among Human Immunodeficiency Virus (HIV) infected individuals on highly active anti-retroviral therapy in North-Central Nigeria. Afr Health Sci. 2018 Dec;18(4):1057-1065.
- Prince HE, Lapé-Nixon M. Role of cytomegalovirus (CMV) IgG avidity testing in diagnosing primary CMV infection during pregnancy. Clin Vaccine Immunol. 2014 Oct;21(10):1377-84. [Accessed 09 Feb. 2024]. Available from:
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