A nucleic acid test (NAT)can usually tell you if you have HIV infection 10 to 33 days after an exposure. An antigen/antibody test performed by a laboratory on blood from a vein can usually detect HIV infection 18 to 45 days after an exposure.
Can it take longer than 6 months to test positive for HIV?
Window Period After exposure and infection with HIV, most people will develop detectable antibodies to the virus within 3 months. However, it can take as long as 6 months for this process (called seroconversion) to occur in a small percentage of people. It is very rare for this process to take longer than six months.
Can HIV take years to show up on a test?
HIV tests detect antibodies — the immune systems response to infection. For the majority of people, HIV testing will be accurate at four to six weeks after possible infection. However, for some people it may take longer — up to three months — for detectable antibodies to develop.
Can you Seroconvert after 6 months?
The Centers for Disease Control currently states that people with possible exposure to HIV, who test negative, should be re-tested six months after the possible exposure to ensure that sufficient time has elapsed to make antibodies.
What does seroconversion feel like?
In HIV seroconversion, the most common symptoms are fatigue, fever, sore throat, body aches, rash, headache, and swollen lymph nodes; people often think that they have the “flu”. While some people may feel so sick that they go to see a doctor, others will have no symptoms at all.
Can seroconversion happen after 4 weeks?
This is called seroconversion illness and usually occurs one to four weeks after infection. Symptomatic seroconversion illness occurs in at least 50%, and possibly as many as 80 or 90%, of infected individuals.
Will I test positive during seroconversion?
HIV Seroconversion may be associated with flu-like symptoms, though many people have no symptoms at all. The period between exposure to HIV and seroconversion is variable, but most people will test positive within several weeks of exposure.