Dr. Tan and Partners is one of the few approved Anonymous HIV Testing Centres in Singapore. A detailed write up on our service is available here.

Other STD services: Early STD Screening, Rapid Hepatitis B Blood Test, Swab for Gonorrhea and many more... contact us to make an appointment now!

Most Popular HIV Articles

Most Popular HIV Articles

More on HIV symptoms

When to test for HIV during and after completion of PEP

HIV P24 Ag/Ab Test, Duo Test, Combo Test at our Clinic

HIV – Understanding the Window Period

Condom Broke!

HIV Testing – FAQ

Getting HIV from Oral Sex

Anonymous HIV Testing at Our Clinic.

HIV Symptoms

HIV Symptoms – Early Symptoms of HIV

More on HIV symptoms

HIV Biology

The different generations of ELISA

How long can HIV live outside the body?

All about HIV Types, Subtypes, Groups and Strains

HIV ELISA test and HIV ECLIA test

HIV Window Period

Updates on HIV testing Window Period

HIV and Hep C coinfection window period

HIV – Understanding the Window Period

HIV Tests

When to test for HIV during and after completion of PEP

HIV P24 Ag/Ab Test, Duo Test, Combo Test at our Clinic

Anonymous HIV Testing at Our Clinic.

Nucleic Acid Amplification Testing (NAAT)

Cost of HIV/STD Tests at our Clinic

Rapid Anonymous HIV Combo Test at our clinic

HIV Testing – FAQ

PEP and PrEP

Tablets to prevent HIV – PrEP

HIV PEP treatment at our clinic

Medicines to Prevent HIV – PEP and PrEP

There is NO CURE for HIV EXCEPT…


HIV Latest News

Towards a cure for HIV

Female to Female Sexual Transmission of HIV

Video of Positive Oraquick Advance HIV 1/2 Test

Video of Alere Determine HIV test – Positive Test

How effective are Condoms, Diaphragms and Circumcision in preventing HIV transmission?

Advances in HIV Vaccine Research

HIV/AIDS General Info


Need more advice?

Come down to Our Clinics for a discussion with Our Doctors, or call our clinics for more information:

Singapore Branches


Where to find us – here

Selected clinics are open on Saturday and Sunday.

Email: hello@dtapclinic.com.sg

All Our Doctors are Fully Certified and Trained to conduct specialised STD Screening,  STD Testing & STD Treatment and HIV Testing.

For lady patients who prefer female doctors, we have professional certified female Doctors to attend to your medical needs.



  1. Hi dr Tan
    Hello from Turkey!
    I got duo test after 21. Days actually at 21 days and result was negatife my doc told me that almost %98 what do you think ? I will take another one at 41 days
    Thank you

    • I agree with your doctor. You should stop worrying but certainly still test again after 28 days.

  2. Hi Dr. Tan , can you please update me about window period for HIV 2? I had 6 month negative Tridot test post exposure and was negative. I had all the ars symptoms in this period including rashes and weight loss. Rna pcr -1 negative at 3&5 months and duo at 1,2,3,5 months.my exposure was with a Brazilian where HIV 2 is very prevalent. Please help.

    • As far as I know, screening for HIV 2 is conclusive with a 3rd Gen ELISA test at 3 months post exposure. Please verify this with your doctor.

  3. Hello,please is an alere determine HIV 1/2 test conclusive at 11 weeks?

    • Technically the test is only conclusive at 3 months. However, at 11 weeks, it is already extremely indicative.


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