Serological testing for herpes simplex virus (HSV)-1 and HSV-2 infection

Area of Science:

• Virology
• Immunology
• Clinical Diagnostics

Background:

• Herpes simplex virus (HSV) infections are common, with HSV-1 and HSV-2 causing distinct clinical manifestations.
• Accurate differentiation between HSV-1 and HSV-2 is crucial for appropriate patient management and epidemiological studies.
• Existing diagnostic methods may lack specificity or require specialized laboratory settings.

Purpose of the Study:

• To review the availability and utility of new serological tests for distinguishing between HSV-1 and HSV-2.
• To highlight the clinical applications of these type-specific HSV antibody tests.
• To discuss the potential impact of these tests in various healthcare settings.

Main Methods:

• Commercially available enzyme-linked immunosorbent assays (ELISAs) and immunoblots detecting antibodies to HSV glycoproteins G-1 and G-2.
• Point-of-care (POC) testing for HSV-2 using finger-stick blood samples.
• Review of test principles focusing on type-specific antibody responses.

Main Results:

• Type-specific serological tests for HSV-1 and HSV-2 are now commercially accessible.
• Tests like HerpeSelect-1/2 and POCkit-HSV-2 offer accurate differentiation.
• These assays detect antibodies to specific HSV glycoproteins (gG-1 and gG-2).

Conclusions:

• New serological tests enable precise differentiation between HSV-1 and HSV-2 infections.
• These tests are valuable for confirming diagnoses, identifying asymptomatic infections, and risk assessment.
• Widespread use in STD, prenatal, and HIV clinics is anticipated due to high patient interest.