Western blot test is reliable and confirmatory test for HSV2.
And as per your description,it indicates the evidence of past infection so possibly it's IgG HSV2 positive.
Many people can test positive for HSV2 (genital herpes) and never have symptoms. Some people, after exposure, will have a breakout within 2 weeks after the virus is transmitted but some only will exhibit flu-like symptoms including fever and swollen glands. Sometimes the outbreak is so mild that it gets unnoticed.
The presence of IgG for HSV-2 without any history of outbreak suggest prior exposure but your immune system was able to overcome and suppress it from showing symptoms.
HSV-2 IgG are antibodies that the body make to fight infections due to HSV.
If you have active infection due to HSV-2, then you will have IgM and IgG antibodies , or IgM alone.
A positive HSV 2 IgG suggest a past exposure to HSV 2.The virus is now dormant and can activate if the immune system is down as in events of stress or illness.
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Thanks for the follow-up.
Yes you can have an outbreak in future as the virus is now dormant and can activate if the immune system is down as in events of stress or illness.
Yoru current partner may be exposed now.
And even if you have no symptoms you can still transmit infection with asymptomatic viral shedding.
For further details-
Correct and consistent use of latex condoms can reduce the risk of genital herpes
so you should prefer safe sex practices.