Herpes Blood Test (HSV-1 IgM Antibody)
Detect early HSV-1 exposure with confidence.
The Herpes Blood Test (HSV-1 IgM Antibody) is a targeted serological investigation for the detection of IgM-class antibodies directed against Herpes Simplex Virus type 1 (HSV-1). This test is intended for individuals who present with symptoms suggestive of a recent primary HSV-1 infection, such as oral or genital lesions, and for clinicians seeking to confirm acute exposure. It may also be used in occupational health or pre-procedural screening contexts where evidence of recent infection is relevant. The assay employs an enzyme-linked immunosorbent assay (ELISA) technique to qualitatively detect HSV-1-specific IgM antibodies in a simple blood sample.
Biomarkers Included
Herpes Simplex Virus Type 1 (HSV-1)
- HSV-1 IgM antibody: A positive result suggests recent or acute infection with HSV-1, as IgM antibodies typically appear early in the immune response and may indicate primary infection or reactivation. However, IgM testing alone has limitations, including potential cross-reactivity with HSV-2 and other herpesviruses, and it should be interpreted alongside clinical findings and, where appropriate, confirmatory testing such as HSV-1 IgG or PCR.
Why it matters
Early identification of HSV-1 IgM antibodies can support timely clinical management, help differentiate recent from past infection when used with other markers, and inform counselling on transmission risk. For healthcare workers and those in regulated professions, documented serological status may form part of occupational health clearance. Accurate detection aids in reducing onward transmission and guiding appropriate antiviral or supportive care.
Herpes Simplex Virus Type 1 (HSV-1)
- HSV-1 IgM antibody
No special preparation required.
For blood tests, we recommend drinking plenty of water beforehand to ensure smooth sample collection. If you are taking any regular medication, continue to do so unless advised otherwise by your doctor.
Important Clinical Information:
This test is a screening tool to monitor and support your overall health. It does not replace your GP or Consultant.
Always discuss your test results, especially any abnormal results, with your GP, who can interpret them in the context of your medical history and overall health.