*Home>>>HIV Test

How long does it take for HIV to show up on a blood test?

I know the CDC recommends 3 months... is this an accurate timeline? Has anyone heard of it taking longer?

I also agree with the first two posts. A bit more information:
75% of people will test positive by 20 days after exposure
95% of people will test positive by 8 weeks
99% of people will test positive by 12-13 weeks.

I also recommend getting a second test (if you have a specific higher risk possible exposure, or are extremely worried/anxious) at a later date, though unless you are immune compromised already (chemo/radiation, large doses of steroids, or severely malnourished --- and therefore your immune system is unable to work well enough to create antibodies) the test at 13 weeks can be considered accurate.

Hope this helps.

3 months is an accurate timline. As a general rule it is adviseable that you have yourself tested twice, once as soon as you think you've been infected and again 6 months later. It is always recommended that you be tested twice, with the second test performed 3-6 months after the first, regardless of when you have come into contact with the virus.

I agree with "Megan". The CDC determines many of the guidelines used by hospitals and professionals. Don't second-guess them. They are the experts.

  HIV Positive   HIV Virus   HIV Transmission   HIV Treatment   HIV Infection   HIV Symptoms   HIV Test
Related information
  • Hiv obsession(ocd?)?

    You seem to be describing Hypochondria. That is, an excessive preoccupation about having a serious illness. Hypochondriacs are many time sufferers of OCD as well. I would advise you to go see a...

  • Why would someone's body produce HIV antibodies and get a false postive test back?

    Your body can't produce HIV antibodies unless it has been exposed ti HIV. Either the test was contaminated or the person has been exposed to that virus.

  • How long after being exposed to hiv does it show up on a test?

    It can potentially show up 6 months after the exposure. That's why blood donated for hospital use can't be guaranteed 100% that is doesn't have hiv. When someone donates their bl...

  • Number of HIV-Positive Blood Donors RedCross?

    in the u.k. all donors are screened for hepatitis b & c, hiv & syphylis.. if a result is positive the donor is informed and offered councilling and support

  • How fast hiv virus spread in a human body after a sexual relation & when is the earliest test that is reliable

    Hi there, There is a "window period" which is the time it takes the body to produce antibodies after HIV infection has begun. For the vast majority of those who will test positive, ant...

  • If i got hiv virus through blood transmission before 4.5 years...and also i had my blood test for viral fever.

    HIV is a lentivirus, meaning that symptoms show up years after infection. However, detection of HIV in blood is possible after six months after infection for the majority of cases. In the worst cas...

  • [HIV] How do I interpret S/CO values?

    No, you should not be alarmed, because the cut off values are a measure of the controls used for your test, and have nothing to do with your sample. Every time a batch of HIV tests are done, extra...

  • Can a hepatitisb vaccination 2 weeks after exposure to hiv effect the time of the hiv antibody being detected?

    Two different antigens.... The reason for a three series Hep B injections is because that is how many innoculants it takes to get the antibodies. Some times it may require a titer. HIV, it is a...


    Categories--Copyright/IP Policy--Contact Webmaster