Description of the blood test: 

The HSV Typing test is a specialized laboratory study used to distinguish between the two main types of the Herpes Simplex Virus. While both types can cause similar lesions, knowing the specific type is clinically significant for predicting the frequency of recurrences and assessing the risk of transmission. HSV-1 is traditionally associated with oral infections, while HSV-2 is the primary cause of genital herpes. This test identifies type-specific antibodies, providing the physician with a clear map of the patient’s viral profile.

What does the analysis represent?

• Purpose: Qualitative or quantitative determination of type-specific IgG antibodies to differentiate between HSV-1 and HSV-2.

• Primary application: Differential diagnosis of genital and oral lesions, assessment of recurrence risks, and prenatal screening.

• Performance: High-precision enzyme immunoassay (ELISA) or immunoblotting of venous blood serum.

Recommendations for the test (General)

•  Time: Recommended to perform the test in the morning.

• Fasting: A food intake pause of 4–8 hours is necessary.

•  Rest: Stay in a calm state for 15–20 minutes before the blood draw.

• Important: Distinguishing the type helps in choosing the most effective long-term management strategy, as HSV-2 typically has a higher rate of recurrence.

What can affect the results?

• Window Period: It may take several weeks after exposure for type-specific antibodies to reach detectable levels.

•  Immune Status: Immunosuppression may lead to lower antibody titers, potentially affecting the sensitivity of the typing.

When to take the test?

• Recommendations: Prescribed when a patient has confirmed herpes but the specific type is unknown, or during a comprehensive health screening for couples.

• Preparation: Standard preparation for serological tests; exclude alcohol 24 hours prior.

How to interpret the results?

The interpretation of data is the exclusive responsibility of a urologist, gynecologist, or infectious disease specialist. Typing results are not a standalone diagnosis but a guide for clinical management. The physician analyzes which type is present to predict the clinical course of the infection. Only an expert can use this information to create a personalized prevention plan and determine if suppressive therapy is required based on the specific behavior of the identified virus type.

Possible further investigations

• HSV 1/2 IgM: To evaluate the current activity of the specific type identified.

•  Complete Blood Count (CBC): To check general immune health.

• Consultation with a Urologist: For specialized management of type-specific genital symptoms.

When does the next step make sense?

Identifying the specific type of herpes allows for a more accurate prognosis and targeted treatment. The next step is a consultation to discuss the specific characteristics of your identified type and how to maintain a high quality of life while managing the virus.

👉 If necessary, you can discuss the test results with our specialized — urologist (Doctors – TAMC).