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A member asked:

Would being a carrier of hsv1 show up on a blood test without an open sore? and still give it to someone?

1 doctor answer3 doctors weighed in
Dr. Hunter Handsfield
Infectious Disease 54 years experience
Yes. Blood tests...: ...for HSV detect antibody, the immune reaction to HSV1 and/or HSV2. Infection and positive blood test persist for life, with or without visible outbreaks. Whether or not you can transmit it to another person is a different issue. Pos blood test indicates it's possible, but likelihood depends on location of infection (oral, genital, etc), outbreak, viral shedding at infected site, type of contact.

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Last updated Jun 28, 2018


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