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    Hiv testing
    An_256430 posted:
    While it is widely believed that 95% of people infected with hiv will have detectable antibodies by 6 to 8 weeks,can u pls answer hat category are the rest 5%.Is is due to age,weight,immune and auto immune disorders,medications and other general conditions.Also what percent of people as per ur knowledge tested positive after a negative test at 8 to 10 weeks.Pls keep in mind the tests carried out in developing countries are usually of the second generation.As per my knowledge the first generation tests did not test for Hiv 2 .Pls correct me if I am wrong.
    georgiagail responded:
    Likely due to the immune system since it is this system that is cranking out the antibodies.

    Actually, I know of no one who has tested positive after a negative test at 8 to 10 weeks. However, that's no guarantee it hasn't happened. Which is why the "gold standard" for testing is 90 days after a potential exposure. By then 99.99 percent of newly infected folks will have enough antibodies present to be picked up by current screening methods.

    Who falls into the very, very small .01 percent left over? Those whose immune systems are already damaged by other, very serious medical issues. For example, someone who has very recently undergone chemotherapy or someone who has had an organ transplant and is on immune suppressing medication to prevent rejection of this organ. For those folks, six month testing is the recommended time period.


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