HSV-1 IgG Antibodies
The presence of HSV-1 IgG antibodies indicates past or ongoing infection with Herpes Simplex Virus type 1. HSV-1 is commonly associated with oral herpes but can also cause genital infections. IgG antibodies typically appear a few weeks after initial infection and remain in the body for life, serving as a marker of previous exposure. This test does not indicate whether the infection is currently active but helps confirm whether the immune system has encountered the virus. A positive result may be clinically relevant in evaluating symptoms or in pre-screening before certain medical procedures.
Description
Testing for HSV-1 IgG antibodies can be helpful for individuals with a history of cold sores, oral lesions, or unexplained neurological symptoms. It’s also recommended for those planning pregnancy, undergoing fertility treatment, or having immunosuppression. Testing can provide useful insights even in asymptomatic individuals, as HSV-1 can be transmitted unknowingly.
- Cold sores or fever blisters around the mouth
- Tingling or itching around the lips
- Sore throat or swollen lymph nodes
- Flu-like symptoms during primary infection
- Eye infections (in rare cases)
- Infrequent but possible genital outbreaks
HSV-1 is most commonly spread through oral contact, such as kissing or sharing utensils, lip balm, or drinks. It can also be transmitted to the genital area during oral sex. Many people acquire HSV-1 in childhood through casual contact.
A positive result indicates past exposure to the HSV-1 virus. It means the body has produced antibodies against the virus, which typically remain for life. It does not confirm whether the virus is currently active or when the infection occurred.
