STD Screening: Accuracy and Options Beyond HIV and Syphilis - Pharmacology

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Screening for sexually transmitted infections (STIs)


Hello, doctor.
I apologize for the interruption.
My partner and I underwent government-subsidized testing for HIV and syphilis, but we are still concerned about other sexually transmitted infections (STIs).
The information I found online about STIs is quite scattered and overwhelming.
Most comprehensive STI testing panels seem to include HIV and syphilis.
I would like to ask if the STI testing offered at clinics that includes HIV and syphilis is the same as the government-provided testing or if it has a higher accuracy rate.
Is it possible to only get tested for STIs that do not include HIV and syphilis? I couldn't find relevant information, which is why I'm inquiring here.
Thank you, doctor.

Sean, 30~39 year old female. Ask Date: 2019/05/01

Dr. Huang Shenggang reply Pharmacology


Hello Sean: Thank you for your inquiry.
Regarding HIV testing, you can refer to the list of certified testing sites announced by the Centers for Disease Control.
This includes the 2019 one-stop anonymous rapid HIV testing, the 2019 list of hospitals offering anonymous testing, the 2019 list of health bureau anonymous testing sites, and the 2019 list of private organizations providing anonymous testing services.
You can find more information at the following link: https://www.cdc.gov.tw/Category/Page/gH7NyWhq3ulASakaq5DDIQ.
Additionally, Changhua Hospital also offers testing assistance! You can call 04-8298686 #1039 or 1762 to reach Nurse Li Yi-Ching.
Thank you, and I wish you good health!

Reply Date: 2019/05/01

More Info


When it comes to sexually transmitted disease (STD) screening, particularly regarding HIV and syphilis, it's important to understand the various testing options available and their accuracy. You've already taken a significant step by participating in government-subsidized screenings for HIV and syphilis, which are two of the most common STDs. However, your concern about other potential STDs is valid, as there are several other infections that can be transmitted through sexual contact.


Understanding STD Screening Options
1. HIV and Syphilis Testing: The tests you underwent for HIV and syphilis are typically very reliable. Most government programs use tests that have been validated for accuracy, often employing methods like the ECLIA (Electrochemiluminescence Immunoassay) or ELISA (Enzyme-Linked Immunosorbent Assay). These tests generally have high sensitivity and specificity, meaning they are effective at correctly identifying those who do and do not have the infections.

2. Other STDs: Beyond HIV and syphilis, there are several other STDs that you may want to consider screening for, including:
- Chlamydia: Often asymptomatic, it can lead to serious reproductive health issues if left untreated.

- Gonorrhea: Similar to chlamydia, it can also be asymptomatic and can cause complications.

- Herpes Simplex Virus (HSV): This virus can cause genital herpes, which is common and often goes undiagnosed.

- Human Papillomavirus (HPV): While many HPV infections resolve on their own, some types can lead to cancer.

- Hepatitis B and C: These viruses affect the liver and can be transmitted sexually.

3. Accuracy of Tests: The accuracy of STD tests can vary based on the type of test used and the timing of the test in relation to potential exposure. For example, while HIV tests can often detect the virus within 2-4 weeks after exposure, other infections may have different window periods. It's crucial to consult with a healthcare provider about the appropriate timing for testing based on your sexual history.

4. Comprehensive Screening: Many clinics offer comprehensive STD panels that include tests for multiple infections, not just HIV and syphilis. These panels can provide peace of mind and ensure that you are screened for a broader range of STDs. If you're concerned about other infections, ask your healthcare provider about the possibility of a full STD panel.

5. Government vs. Private Testing: The accuracy of tests provided by government programs is generally comparable to those offered in private clinics. However, the specific tests used and the protocols followed may differ. It's advisable to inquire about the types of tests being used and their respective accuracy rates.


Conclusion
In summary, while the government-provided screenings for HIV and syphilis are a great start, it is wise to consider additional testing for other STDs, especially if you have had multiple partners or unprotected sex. Comprehensive STD panels are available and can provide a more complete picture of your sexual health. Always discuss your concerns and testing options with your healthcare provider, who can guide you based on your individual risk factors and sexual history. Regular screening is an important part of maintaining sexual health and preventing the spread of STDs.

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