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HIV Testing:
20 min result, 28 days after sex
STD Testing:
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HIV DNA Test, Singapore - Shim Clinic

HIV DNA test Singapore: HIV deoxyribonucleic acid test is a very sensitive test able to detect HIV at the earliest stage of infection.

HIV DNA test is a type of HIV test that uses the PCR test method to detect the very minute amounts of HIV DNA that appears very early after infection.

It’s sensitivity allow for the detection of HIV infection in as little as 10 days after exposure.

It is particularly useful for the diagnosis of HIV infection in infants born to HIV positive mothers.

As HIV is an RNA virus, the maternal HIV RNA may exist in the infant for a while after birth. And hence the detection of the RNA does not indicate infection.

It is only when the HIV begin to multiply in the infant does the HIV DNA start to appear. And hence indicate that an HIV infection has occurred.

  • A PCR (polymerase chain reaction) NAT (nucleic acid test) for HIV-1 proviral DNA, therefore a HIV DNA Test.
  • Method: Proviral DNA Polymerase Chain Reaction (Roche Amplicor HIV-1 DNA Test, V1.5) This test uses primers SK145 and SKCC1B to define a sequence of 155 nucleotides within a highly conserved region of the HIV-1 gag gene.
  • Usually used for the early diagnosis of HIV infection in neonates born to HIV+ mothers. As maternal antibodies circulate in the child for several months, the HIV antibody test would be positive.
  • Also used for early HIV diagnosis in adults.


Related Concepts

Sexual risk (of HIV/STD/pregnancy), and what you can do before and after exposure.

Timeline HIV STD Pregnancy
Before exposure
Abstain from sex, Be faithful, or Condom use
Circumcision (males only)
Contraception
(females only)
HIV PrEP (pre-exposure prophylaxis)
– Stop HIV infection before exposure
STD vaccine:
Hepatitis vaccine
HPV vaccine
STD / HIV exposure
Unsafe sex / unprotected sex:
No condom / Condom broke / Condom slip
0-72 hours HIV PEP (post-exposure prophylaxis)
– Stop HIV infection after exposure
STD testing *
Screening test
– to look for asymptomatic infections
– from previous exposures
Emergency contraception
with the
morning-after pill
(females only)
2 weeks HIV DNA Test
1 month HIV 4th Generation Test
SD Bioline HIV Ag/Ab Combo
– Fingerprick blood sampling.
20 minutes to results
3 months HIV 3rd Generation Test
OraQuick® HIV-1/2 Antibody
– Oral fluid or
– Fingerprick blood sampling.
20 minutes to results
STD testing *
– Full & comprehensive
diagnostic test
– to look for current infections
Watch for HIV Symptoms STD Symptoms
If infected HIV Treatment STD Treatment Abortion

* Males: Do not urinate for at least 4 hours before arriving.
* Females: testing is more accurate when you are not menstruating.


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