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!

Rapid HIV Combo Test at our clinic

SD Bioline HIV COmbo Test

              • Rapid – results in 20 minutes

              • Accurate – Conclusive at 28 days post exposure

              • Walk in clinic – No appointment required

              • We are now open on weekends.



If you had a high risk exposure to HIV within the past 72 hours, you can take medicines to reduce your risk of actually contracting HIV. Find out more on HIV PEP Treatment.

HIV Prevention within 72 hours of exposure (PEP) – Click Here

We are using the SD BioLine HIV Ag/Ab Combo rapid test.

Multicentre clinical trials have shown 100% sensitivity and more than 99% specificity.

Click here to learn more about the P24 Ag/AB Combo/Duo Test

This kit has been registered with Singapore’s Health Science Authority (HSA).

Public Enquiry – Singapore Medical Device Register (SMDR)_SDHIV Ag_AbCombo

Results take 20 minutes.

It only requires a finger-prick.

Cost $150 (Excludes consult and GST)

Just walk in to our clinic anytime during our opening hours. You do not require an appointment.

At the counter tell our staff you would like a Rapid Combo test.

Click here for Detailed Information on HIV tests available at Our Clinics.

You will be given a number and asked to wait to see the doctor.

The doctor will conduct the test for you and let you know the results at about 20 minutes (more or less depending on the situation).

Click on the picture for the latest information on the HIV testing Window Period

Click on the picture for the latest information on the HIV testing Window Period








Click here to see the full range of our HIV/STD Services
Click here for Info on STD Symptoms in Men
Click here for Info on STD Symptoms in Women
Click here for Info on HPV Testing in Men


Need more advice?

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

1.) Robertson Walk (Anonymous HIV Clinic)  (+65 6238 7810)

2.) Bencoolen Street (+65 6884 4119)

3.) Novena Medical Centre (+65 6397 2095)

4.) Scotts Medical Centre (+65 6694 2348)

5.) Somerset – Orchard Building (+65 6262 0762)

6.) Katong – East Coast Road (+65 6635 2551)

Where to find us – here

Selected clinics are open on Saturday and Sunday.

Doctor’s Schedule here

Email: doctor@drtanandpartners.com

All Our Doctors are Fully Certified and Trained to conduct specialised HIV Testing.

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

Find out more about Anonymous HIV testing at our clinics.


If you have any questions, visit our free online forum on sexual health, HIV and STDs.

Related topics:

More on HIV symptoms

How long can HIV live outside the body?

HIV – Understanding the Window Period

Cost of HIV/STD Testing at our Clinics

Screening for Genital Herpes

About Dr. Tan
Dr. Tan graduated from the National University of Singapore in 2001. His residency was in the two largest public hospitals in Singapore; Tan Tock Seng Hospital and Singapore General Hospital.

Find the profiles of our panel of doctors.

Consultation $20.00-80.00
Rapid test only $20.00
(not inclusive of test)
8am – 5pm $60.00
5pm – 9pm $80.00
STD screening
Standard HIV, Syphilis, Hepatitis B/C, Herpes Simplex Virus Type I and II $ 200.00
Urine – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas, NSU, Mycoplasma, Ureaplasma, Urine Culture, Candida $ 280.00
Urethritis and Vaginitis
Vaginal Swab – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas PCR, Gardnerella PCR, Candida PCR, Group B StrepNSU, Mycoplasma, Ureaplasma, Direct Microscopy, Candida, Vaginal swab culture $ 345.00
Comprehensive (Male) Blood – Syphilis, Hepatitis B/C, Herpes Simplex Virus Type I and IIUrine – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas, NSU, Mycoplasma, Ureaplasma, Urine Culture, Candida $ 390.00
Comprehensive (Female) Blood – Syphilis, Hepatitis B/C, Herpes Simplex Virus Type I and IIVaginal Swab – Chlamydia and Gonorrhoea PCR, Monilia, Trichomonas PCR, Gardnerella PCR, Candida PCR, Group B StrepNSU, Mycoplasma, Ureaplasma, Direct Microscopy, Candida, Vaginal swab culture $ 525.00
Individual STD Tests
Determine Syphilis test Rapid Syphilis Test $ 50.00
Determine Hepatitis B Test Rapid Hepatitis B Test $ 50.00
Herpes Simplex Virus PCR Herpes Simplex Virus Polymerase Chain Reaction (PCR) Test $ 190.00
Chlamydia and Gonoccocal PCR Chlamydia and Gonorrhea  $ 188.00
Herpes Simplex Virus Type I IgG Antibody Herpes Type 1 $ 40.00
Herpes Simplex Virus Type II IgG Antibody Herpes Type 2 $ 40.00
Non-Specific Urethritis (NSU) Culture Mycoplasma, Ureaplasma $ 118.00
HIV test
HIV RNA/DNA Polymerase Chain Reaction (PCR) Test $600
Add $100 for expedited results
Rapid Fingerprick Blood HIV-1/2 P24 Antigen/Antibody Combo (HIV Duo Test) (4th generation!) $ 150.00
Rapid Oral Saliva HIV-1/2 Antibody Test (Oraquick) $ 50.00
Rapid Fingerprick Blood HIV-1/2 Antibody Test (Determine) $ 50.00
PEP $2000 – $2200

(Excludes consult and GST)


  1. Hi Doc,

    I had a massage accompanied with a handjob done in Bali.

    I suspect I might have contacted HIV as I might oso have HSV.

    I am experiencing symptons like headache n night sweat.

    Please advise.


    • If you are concerned, please see a doctor to get a proper assessment. I do not think you can contract HIV or HSV from a handjob.

      • Thanks Dr Sii, if At 28 days of exposure, can I do the Rapid Oral saliva or the rapid fingerprint blood test to conclude? Or is a 4th Generation test more recommended?

        Please advise, thanks

  2. Hi doctor, if i have once off unprotected sex, what are the chances of contacting stds and hiv. My partner claim he is healthy but i am unsure as he has never been tested. Also for the rapid hiv testing, is it okay to get tested before 28 days of exposure?

  3. Hi Doctors, I Had a fingerprick test, everything went smoothly. However, I started getting paranoid today. Is there any risk if my pricked finger (bleeding) accidentally touched the surfaces in the clinic? What if there’s leftover blood on the chairs or door or table from other infected patients? Thanks so much.

  4. Good evening doctor.
    I have both abbott ag/ab architect combo and arele determine negative after my risk 85 days.
    I ‘ve just use skin drugs (10 gram, 0,65 mg betamethasone in 1 gram). I used 1 tube for 3 weeks, average 0,42 mg per day. Did i make hiv anyibody develope slower?
    Sorry ,my english is bad,hope you understand.

    Did i safe?
    Do i need re test?
    Is my test conclusive?

  5. Hi

    I have done SD Bioline HIV Ag/Ab Combo test on 18.5 days after possible exposure. It showed negative but The doctor asked me to test after 10 days again. May I know your opinion pls. Thanks

    • My opinion is that the test is very indicative but I agree with your doctor that you need to test again.

  6. Hi Doctor

    On 11 Dec 2016, I went to for a massage and receive a hand job from the massage lady. After the hand job, while the massage lady is cleaning my penis, she playfully and lightly bite my penis head. My penis head is covered with towel with my foreskin pulled down during this incident. Hence, there is no direct contact between my penis head and the mouth & teeth of the massage lady. This happen only once and very briefly. After 10-15 minutes later I went for shower and check my penis head, there is no bite makes or break of skin or bleeding.

    I am worried after this incident and seek your advise on the

    1) Is there any risk of HIV Transmission for this incident?
    2) Is there a need to go for a HIV Test?

    Thank you so much for your attention.

    (PS. I have posted a similar query earlier and am not sure if it is submitted successfully. Hence, I have tried to submit again please ignore my previous post if this is a duplicate)

  7. Hello doctor,
    Before 4 and half month I was in massage parlor in shanghai and accidentally I penetrate in her vagina for 2 seconds. After 14 days I have three mouth ulcers but n fever, rash or shore throat. I have a fever after 75 days but it’s long lasting for only 12 hours. am I at risk?

  8. Hi doc tan , just for info dr tan if you have a pcr test viralload /qauntitation

    Is conculsive after 12 days ?

    Is it the same pcr test as your web ? The naat or rna. But different names ?

    In your opinion pcr viral load /quantation is conclusive after 12 days for HIV

    • Please respond I found a test it’s called pcr HIV viral load /quatitation

      Thanks please take time out how many percent is this conclusive? Just for info is the same as nucelic acid test 🙁

  9. Happy new year dr Tan and everyone in team. I really want to get a new year eve happy with my family…but…. i got an blowjob 3 months ago. At 80 days after risk, i got both an arele determine hiv rapid test and abbott ag/ab architect (4th generation) and all negative.
    Do i need re test
    Can i forget hiv and have a happy with my family.

  10. Hello Dr. Tran,
    I took a combo test at 21 days and it came back negative. It’s now been 9 weeks and I have a few symptoms (night sweats, rash, cold sore). I’m really scared that I got a false negative. What is the accuracy of the combo test at 21 days? Should I feel confident in those results?

  11. Anonymous

    I took a combo test at 21 days and it came back negative but since then I have had a few symptoms (night sweats & rash). I’m really scared that I might have gotten a false negative. How accurate is the combo test at 21 days? Should I feel confident in those results?

  12. Happy holidays doctor. Last 3 months i received some oral sex from massaeurs and i dont see blood on my penis and no hurt. After last risk 16 days, i have a high fever in 3 days and only it happen. Im so worry. After last risk 5,6,7,8,9,10 weeks, i went no clinic and test 6 times both abbott ag/ab combo (4th generation) and alere determine and all negative. At 75 daysfrom last r8sk, i did a roche combi pt (4th generation),negative.

    – is my oral sex little to zero risk?( no scratch,no blood)
    – all my tests are negative.am i safe, do i need re test?
    Thank you by my heart.

    • Honestly I think you have done more than enough tests to confirm the fact that you do not have HIV.

  13. hello dr…I’m from Viet Nam…after my rish(broken comdom about 5 minutes),I took the ELISA 4th gen combo ag/ab on the 20th days,31 days,50 days,and it came back negative…but all of doctor from Viet Nam said it is only conclusive at 3 mounths…
    1)why do they say that?…
    2)can my test(31th,50th day) conclusive with 4th gen???
    3)should i retest???
    4)do I have HIV…I’m worried!!!
    thank you so much?

  14. WorriedSick

    Hi Doctor my exposure was unprotected cunnilungus Im the giver, at exactly 40 days I take the ag/ab combo architect it came out nonreactive.Can I move on with it?

    • As far as I am concerned, there is no risk of HIV from cunnilingus. Also I think the Combo test after 28 days is conclusive. However, we are in no position to verify the accuracy of your results. For that, you should speak to your doctor.

  15. Simple Doubt

    Hi Doctor Tan,

    What’s exactly the meaning of 100% sensitivity for the 4th generation test ? What’s the difference between sensitivity and specificity ?

    Thank you !

    • Sensitivity = rate of false negative. Specificity = rate of false positive. Google it.

  16. Good morning Dr Tan.
    I received blowjob in VietNam many times, and the last risk is 70 days ago. I have tested negative for hiv at 5,6,7,8,9,10 weeks after last risk (both Abbott Ag/ab architect combo, 4th generation and rapid alere quick test). However at 2 weeks after last risk, i have just a high fever in 3 days.
    – what is the risk from oral sex?
    – Am i safe with no hiv with my tests?
    – Could i test again at 12 weeks?
    – Can i live happily ever after?

    • Low risk. I do not think you need to re-test. Living happily ever after or not is your choice !

    • I use a skin cream have 0,64 mg betamathason for 3 weeks. Is it happen with my negative: roche combi pt 4th generation test at 11 weeks?

  17. Hai Doctor,i did a sex activities and i hope u can access if it is a low or high risk? me and one of my male frend we decided to have a handjob each other and kiss/lick each other nipples.no kiss,no penetration just play the balls &the head of the penis with ony our hands..Am i at Risk of getting the Virus??

  18. My risk was 30 months (2.5 years)ago and it is first time don’t repeat any type of sexual contact after that.My partner and her husband HIV 1&2 +p24 test after 26 months from my risk was both negative at Dr lal path labs at Delhi.I took more HIV tests also at 7th months HIV RNA qualitative pcr negative <50 copies/ml,HIV Elisa 1&2 ab at 20th month negative,HIV 1&2 ab +p24 AG negative, at 30 the month SD bioline 1/2 3.0 was negative results.I am suffering long term sore throat from 2 years ,easily get longer colds and weight loss 6 kg/73 kg from 2.5 years but don't weight gain.please say to my original status because I think to marry my fiance in 4 months sir.shall I take to another type of HIV test at this time.

    • Your question baffles me. You say your partner tested -ve for HIV. Yourself tested -ve for HIV 4 times. Yet you are still worried you are infected with HIV. That just does not make any sense to me at all. Ask yourself this: If 4 -ve HIV tests cannot convince you that you are free or HIV, how many will?

  19. Halo dr

    I went for a blood test HIV COMBO on day 21. I got scared after having protected seks with a SW. I could not wait any longer. It was tested by a lab. I’m going for a second test on week 5. Is a COMBO Test on day 21 assuring? Should i still worry? Condom did not break, just mild cold symptoms… thank you for your time.

    • The combo test on day 21 is extremely accurate in my opinion. You really should stop worrying.

  20. Hi doctor, I got the fourth generation hiv 1-2+p24 test after 23 days the result was negative. I got another one but this time was just hiv 1-2 antibodies on day 28 the result was negative. Should I test again? Thank you.

    • In my opinion neither of your tests are officially conclusive. Although they are extremely indicative. If you were my patient, I would advise you to test again. You should verify this with your doctor.

      • Thank you Doctor, so could I consider the Combo-test definitely on day 37?

        • Like we have said many times in this forum, we are in no position to verify the accuracy of your test. We can only given you our opinion. You should verify the conclusiveness of your test with the doctor who did it for you.

  21. Hai Doc..i recently purchased an prostate stimulator (butt plug) online. before i used it,i washed with only water than i used lube to and insert to my anal.Will i get HIV? I am a afraid thay may be someone has used it before they send it to my house.

    • No risk of HIV but you can get other infections like Gonorrhea and Chlamydia from sharing sex toys.

  22. Hai Doc..i recently purchased an prostate stimulator (butt plug) online. before i used it,i washed with only water than i used lube to and insert to my anal.Will i get HIV? I am a afraid thay may be someone has used it before they send it to my house.

  23. Hey Dr./ Drs.

    One night i got really drunk and made a bad decision which was having sex with a girl unprotected, it lasted for about 10 mins. A few days later i noticed a discharge from my penis but only in the mornings. So around 53 days after exposure i had a full std test done which came back positive for chlamydia and no other std. I then asked my doctor which hiv test was done on me and he said the hiv duo test which he then told me in detail that it was the hiv antigen w/hiv 1&2 ABS. All results were negative except chlamydia.
    How conclusive is my hiv test result at 7 weeks and a few days?
    Thanks for your response, really need it…

    • The HIV Combo test at 7 weeks can be considered conclusive. Please verify this with the doctor who did the test for you.

  24. Hello doctor,
    I had unprotected sex with unknown girl.
    I was worried if i had HIV.
    2 weeks later after exposure i performed AB/AG combo test with a negative result.
    32 days after exposure i performed another combo test and the result was negative too.

    Is it accurate? Can i remove the stress and move on?

    After two weeks after exposure i had small rash on my chest and muscles pain, now i feel good.
    One sore throat keep coming and disappearing after two weeks.

    Thank you

    • In my view, the HIV Combo test is accurate after 28 days. However as we are not privy to the details of how the test was conducted, we cannot verify the accuracy of your tests. Please seek clarification from the doctor who did the test for you.

      • Can the way of testing be different from one clinic to another?
        Isn’t a global standard test that should be applied for all clinics?

  25. Hey Dr. Tan

    One night i had way too much to drink and had vaginal sex with a girl which lasted about 15 mins or less. After a few days i noticed a discharge from my penis didn’t pay it any mind at first so 53 days after post exposure i went to a clinic and had a full blown STD test done. I few days i found out that i had chlamydia and was tested negative for any other type of STD. I was then treated for the current infection. A few days later i was curious so i asked my doctor which hiv test was recommended for me and he said the hiv duo test stating in detail that it was the hiv antigen w/hiv 1&2 ABS which was negative. I’d just like to know how conclusive my test result was at 7 weeks and a few days?
    How conclusive is my result?

    Thanks for the information provided, terrific website.
    Thanks for the answer in advance

  26. Hi doctor. I have a question. I had gay sex with a stranger, we used protection but I am aware that this sometimes fails. My question is, the guy a had sex with lived in India for 4 months, and I read that HIV 2 is becaming more common in India. I had an Elisa duo at 28 days, I know this test looks fr both HIV 1 and 2 but how reliable is the tes at 28 days assuming I might be infected with HIV2? Should I repeat this test at 3 months? Is the window period for HIV 2 longer than for HIV 1?

    • The P24 antigen in the combo test only applies to HIV 1. So if HIV 2 is suspected, we would usually advise our patients to repeat the test at 3 months. However, we cannot give you medical advice over the internet. Please speak to your doctor.

      • Thanks for your answer. I’m planning on repeating it at 3 months anyway just to be sure but how common is HIV 2 in India? Should I be worried? Thanks doctor.

        • I do not know the prevalence rate of HIV 2 in India. Maybe you can ask your doctor and share the statistics with us.

  27. will hiv be transmitted through hair cut as in your article it said hiv can survive up to 7 days in normal environment.

    • I have not heard of HIV being transmitted via a visit to the barber although I get a lot of enquiries on this. I do not know who started this urban myth. If you think your situation truly has put you at risk of HIV, please go speak to your doctor.

  28. i had a protected sex but after we have finish successfully. she play with my dick am so curious to have the virus…. according what i heard must of the people who have the virus always want pass it on to others…
    what of if she intentionally touched her private part and put the semen on my panis?
    am i at risk of contacting the virus?

    • You are at risk from the protected sex, not from her fondling your privates. The simple, but not often recognized fact is that condoms are very good in protecting one against HIV but it is not 100% effective.

  29. Protected vaginal sex with a worker… made unprotecded blowjob… sucked my penis… 21 dayss later, I have the flu…My swollen lymph… 8 week (60 day)- 4 my generation hiv test negative… Antigen-0.1 antibody-0.6 (Vidas Hiv duo ultra)… I am Hashimoto… My test result is reliable ??? Should repeat the test ???

    • The HIV 4th Gen test at 21 days is extremely accurate. In my view as good as conclusive. However, according to guidelines, you still have to repeat the test at 1 month post exposure. Your exposure was also extremely low risk. I do not see any reason for you to be worried.

  30. Dear Doctor,

    I wish to check the risks on having a naked body massage. Am I at risk of HIV/STD? Do i need to get a check up done? I am unsure if I may have been in contact with any body fluids from the lady, no form of penetration was present.


  31. Hello doctor tan just wanted to ask

    If my blood draw sample for HIV combo test is exposed to the air would that make my HIV test inaccurate ? If not then why ?

    I have heard HIV dies once outside the body so will that effect my test results ?

    How long can blood sample be exposed to air that can cause HIV test to be in Accurate ? Thanks for the reply .

  32. Hey Dr.
    I had a hiv antigen w/hiv 1&2 ABS test approximately 7 weeks and 4 days after exposure (53) days and it came back negative.
    How conclusive is this test result?
    And how conclusive is it in your opinion?

    Thanks for the answer in advance…
    Thanks again

  33. Hi Dr,

    Just want to check my risk of contracting HIV/STD.
    I recently had a full naked massage with the lady massaging me and giving me a masturbation through out. I am unsure if her vagina had touched my penis or were there any exchange of body fluids. Should I be worried and get a test?

    This occured on 11 Nov 2016.

    • There are STDs that can be transmitted via skin to skin contact. Please see your doctor for more advice on the need for screening.

  34. Hello Doc .

    Just want to check that does HIV virus died when exposed to air ?

    Because, the toilet seats in the public stained with dried blood and i accidentally sit on (omg) and i wasn’t sure if the previous user is a HIV + . So, my question is .. what is the risk of me getting infected ? 🙁

    is there high chance i will get ? Please advise.

    Thank you!

  35. Hello dear doctor!
    I’ve got one question is it possible to catch hiv if i receieved oral sex from a woman which hiv status i don’t know (I don’t know if she is + or –

  36. Hi Doctor, I had unproctected sex once in 1997, once in 1998, and my last unprocted sex was in 1999 once too, I had swollen lymph in my leg and like alergy in my skin in 1999. since that I was not active again in sexual but started 2007 I always had proctected sex and my last exposure was August 2016, and I Had swear not to have sex again with CSW.

    I had Combo Duo Test AG/AB 39 Days after my last exposure and the result was Non Reactive Titer 0.09 , my Question are :

    1. Is The Combo Duo Test cover my Past long exposure in 1997-1999 and 2007 or the test only examine the last exposure only ??
    2. Is the Combo Duo Test also test HIV2 or HIV1 Only ?
    3. should I Test Again after 3 months ?
    4. was my test conclusive and 100% no HIV ?
    5. If I want test HIV2, what metode available and when ?

    Thank You Doctor for your answer

    • 1. It will also cover the previous exposures.
      2. Depends on what test you did. Ask your doctor.
      3. Ask your doctor.
      4. Ask your doctor.
      5. There are tests available for HIV2. Ask your doctor.

  37. Dear Doctor, if I have test HIV Combo after 5 weeks is Non Reactive, is it conlusive and valid ?? Should I test again in 3 months ? Thank you

    • In my opinion it is conclusive. Please see the doctor who did the test for you to verify the accuracy of the test.

  38. Tauson Lim

    Hello Doctor,i recently have a 2nd dose of HBV vaccinations, can this vaccination causes a incorrect blood test result in any STD testing (HIV, Herpes,Sypihilis etc)

  39. Does fingering with hangnail wound posses HIV transmission risk?
    I didn’t insert the finger into the vagina it was only superficial but the finger with hangnail wound may have touched the opening of vagina and if any secretion may have come into contact with the finger.

    Is there any risk of HIV transmission given I don’t know the HIV status of the girl?

  40. Helo doc. i want to ask before i had unprotected sex with a girl at 04 Oct 2016. She told me she didnt have it. She already go check in Thailand also. After do that i got sick like fever, sore throat, hard to shallow, fatique, the eyes looks so brightness, sometimes headache.
    I got test after 10days with elisa test the result is negative. and she also get the test at 15 days after that. the same result negative. Should i test again 30 days or 90 days? how about my body problem?

    • No HIV test on day 10 or day 15 is conclusive. If you are worried about HIV, do a HIV combo test on day 28 to be sure. Your symptoms are consistent with pharyngitis or tonsillitis. See a doctor to get yourself assessed and treated.

  41. Hai Doc, i have a masseur gv me a hanjob and he wipe my semen with a towl. am i in a risk of contracting HIV

  42. Hai Doctor Tan,i been tested negative for HIV for three month.Do i need to get test another 3month more again ??

  43. Hai Doctor, I am recently having my vaccination for HBV.Are this vaccination will cause changes my HIV Window Periods? I just test negative at my 13week of my post exposure to HIV.


  1. Vaginal Bacterial Infection Vaginosis | Women's Health - […] wait for 3 months to find out? Find out more about Anonymous Rapid HIV Combo test at our […]

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