Simultaneous Infection of HSV-1 and HSV-2: Key Insights and Concerns - Urology

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Regarding the issue of co-infection with herpes simplex virus types 1 and 2 and the related testing?


Hello Doctor: I have been troubled by herpes issues.
Since the end of January this year, I have experienced recurrent urethritis for a month, so I went to see a doctor.
The doctor suggested that if the inflammation persists, I could undergo some tests.
On February 21, the test results showed herpes HSV 1 IgG (+) 2.89; (-)<0.9 and HSV 2 IgG (+) 3.11; (-)<0.9.
No herpes DNA test was performed at that time, nor was there an IgM test, but I did not have any symptoms like blisters, and I have never had them in the past.
The doctor mentioned it could be a primary infection or a recurrent infection.
I was very worried, so I went to another hospital for self-paid tests, including blood tests for herpes 1+2 IgM; herpes 1+2 IgG; and herpes virus DNA testing (from secretions).
The results from March 5 were: herpes HSV 1 IgG (+) 83.5; 16-22(+/-) RU/mL, HSV 2 IgG (+) 49.2; 16-22(+/-) RU/mL, herpes HSV 1 IgM (+) 0.10; 0.9-1.1(+/-), HSV 2 IgM (+) 0.22; 0.9-1.1(+/-).
Both IgM for herpes 1 & 2 were negative, but the IgG for both herpes types were positive, and the values seem to be higher than on February 21.
I would like to ask the doctor:
1.
Based on the results from February 21 to March 5, it appears that the IgG for both herpes types has increased while the IgM for both is negative.
Does this indicate a primary infection or a recurrent infection? (I read that IgM disappears after about seven weeks post-primary infection, and IgG peaks at 6-8 weeks after the initial infection.)

2.
It is known that a high proportion of infections may be asymptomatic, but does "recurrent" imply that there are symptoms present? Or can there be recurrences without symptoms, just fluctuations in antibody levels? Additionally, can both types recur simultaneously without any blister symptoms?
3.
The values for herpes type 1 and type 2 seem similar; does this suggest that I was infected with both types at the same time, indicating a primary infection? I have had the same sexual partner for the past four years, and there have been no other partners, nor have I ever had herpes blisters on my body or face.
4.
The herpes DNA report has not yet come out.
If IgM is negative, IgG is positive, and herpes DNA is also negative, does this indicate a past infection rather than a recurrence or active infection? If the herpes DNA is positive, could that indicate a primary infection and an active infection? Is this a valid way to interpret the results?
5.
If I test for herpes 1+2 IgG again in two weeks, can I determine whether it is a peak from a primary infection or a recurrent infection based on whether the values increase or decrease? I lead a simple life and have no related symptoms, but I am shocked to find that I have both herpes type 1 and type 2.
I really want to understand the reason behind this, and I feel very anxious.
Additionally, I am concerned about potential issues during pregnancy or whether I might continuously develop herpes as I age and my immune system weakens.
This situation is causing me a lot of distress and pain! Please help me with these questions.
Thank you!

hen jiao lv, 20~29 year old female. Ask Date: 2020/03/08

Dr. Du Shixi reply Urology


Hello: 1) It is most likely a recurrence.
2) It may just be mild symptoms, rather than completely absent, or there could be a weakened immune response, increasing the chance of an outbreak.
3) Many people are infected with this disease in childhood.
4) Herpes DNA testing may also be a reference; I have limited personal experience, but it should be more commonly used for patients with more severe cases in medical centers.
5) Two tests may be useful for reference, primarily focusing on whether there are symptoms.
Herpes infections are difficult to avoid; the key is to pay attention to immune function.
If an outbreak occurs, treatment should be initiated.
Please pay attention to nutrition and sleep.
Wishing you good health.

Reply Date: 2020/03/08

More Info


Understanding simultaneous infection with HSV-1 and HSV-2 can be quite complex, especially when considering the nuances of herpes simplex virus infections and their implications for health and relationships. Based on your detailed inquiry, let’s break down your concerns and provide clarity on each point.

1. Initial vs. Recurrent Infection: The presence of IgG antibodies for both HSV-1 and HSV-2 indicates that you have been exposed to both viruses at some point. The IgM antibodies, which are typically present during a recent infection, are negative in your case. This suggests that you are not currently experiencing a primary infection. Since IgM usually disappears within a few weeks after the initial infection, your results imply that you are likely dealing with a past infection rather than a new one. The rising IgG levels could indicate either a recent infection that has now stabilized or a reactivation of the virus, but without symptoms, it leans more towards a past infection.

2. Asymptomatic Infections and Recurrences: It is indeed possible to have HSV infections without any visible symptoms. Many individuals carry the virus asymptomatically, which means they can transmit it to others without knowing they are infected. Recurrences of herpes can happen without noticeable symptoms, known as subclinical shedding, where the virus is active but does not cause visible lesions. Therefore, even if you do not see symptoms, the virus can still be present and potentially transmissible.

3. Simultaneous Infection: The similar IgG levels for both HSV-1 and HSV-2 could suggest that you were exposed to both viruses around the same time, but it is also possible to be infected with one type and later acquire the other. The fact that you have had a consistent partner for four years and no prior symptoms from either type may indicate that you were asymptomatically infected for some time.
4. Interpreting DNA Test Results: If your herpes DNA test comes back negative, along with negative IgM and positive IgG, this would generally indicate that you are not currently experiencing an active infection. Instead, it suggests a past infection. If the DNA test is positive, it would indicate an active infection, which could be a primary or recurrent episode.
5. Future Testing and Monitoring: Re-testing your IgG levels in a couple of weeks can provide insight into whether your antibody levels are increasing or decreasing. A significant rise in IgG levels could suggest a recent infection or reactivation, while stable or decreasing levels would support the idea of a past infection.
Regarding your concerns about pregnancy and future health, it’s important to note that many individuals with HSV lead healthy lives and have successful pregnancies. The risk of transmission to a partner or child can be managed with appropriate precautions, especially during active outbreaks.
In summary, while the presence of both HSV-1 and HSV-2 can be concerning, many people live with these viruses without significant health issues. It’s crucial to maintain open communication with your healthcare provider, who can guide you through testing, management, and any necessary precautions. If you have further concerns about your health or the implications of HSV for future pregnancies, consider consulting a specialist in infectious diseases or a reproductive health expert.

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