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A 32-year-old female asked:

After how many weeks after exposure does an hsv 1&2 antibody test turn from igm to igg?

2 doctor answers3 doctors weighed in
Dr. Gurmukh Singh
Pathology 51 years experience
Variable: Both igm and igg can be present concurrently. Igm response may appear about a week after exposure and may last a few months. Igg is likely to appear about two after after exposure and be present life long.
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Dr. Brendan Carroll
Obstetrics and Gynecology 29 years experience
3 weeks: Approximately 50% of people will have igg antibodies detectable by 3 weeks. Most people will have igg detectable by 3-4 months and occasionally it may take up to 6 months.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 26-year-old female asked:
What is the test result range for both negative & positive for HSV antibodies IgM & igg? Ex. <0.9 ... Etc
Dr. Suzanne Fiala
Family Medicine 32 years experience
Differs by lab: What you are asking is for the normal "reference ranges" for these tests. Reference ranges are established by each laboratory based on their testing ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 26-year-old female asked:
What's the best & most conclusive test for HSV other than antibodies? I got 1.5+ for IgM but <0.9 for igg. Am i infected? Help please help please
Dr. Jeff Livingston
Obstetrics and Gynecology 24 years experience
Viral PCR: The most conclusive test is to swab an active lesion for a viral dna pcr test. This is the most accurate and will detect active herpes virus. The prob... Read More
Created for people with ongoing healthcare needs but benefits everyone.
View all answers
A 32-year-old female asked:
Hsv 1/2 antibody blood tests -- would this blood test always test IgG and igm? Hsv 2 negative -- i assume for both IgG and igm?
Dr. Michael P Vaughn
Allergy and Immunology 36 years experience
HSV testing: Igm is the first antibody type to be produced in an immune reaction to a foreign invader such as a virus. Over time, the igm response changes to igg. ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 25-year-old male asked:
Had unprotected sex a month ago - IgM test negative and HSV Type 1&2 IgG Antibody test positive (17.40), recent infection or had it for some time?
Dr. Gurmukh Singh
Pathology 51 years experience
Prior exposure: Most adults have been exposed to HSV 1, oral herpes. HSV 2 or genital herpes is less common. Was the IgG antibody result for HSV 1 or 2?
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old female asked:
Most doctors say that it takes between 4-8 weeks for antibodies for HSV 1/2 to show up in blood. Is this for IgG or IgM antibodies?
Dr. Gurmukh Singh
Pathology 51 years experience
IgM antibodies come: About a week before igg antibodies. Hsv may be diagnosed by viral culture and/or microscopic examination of scrapings from a lesion.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Aug 9, 2013

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