Herpes Simplex Virus-1 (HSV1) IgM

This test detects IgM antibodies against herpes simplex virus type 1 (HSV-1), which causes oral herpes (cold sores).

It helps determine recent or primary HSV-1 infections, especially in individuals with symptoms like mouth ulcers, fever, or encephalitis.

A blood sample is drawn and tested for the presence of IgM antibodies using enzyme-linked immunosorbent assay (ELISA) or other immunoassays.

A positive result suggests a recent HSV-1 infection, while a negative result means no detectable IgM antibodies at the time of testing.

Patients may require antiviral medications, such as acyclovir, to manage symptoms. Additional IgG testing may be recommended for further evaluation.