So you guys are telling me that 2 negative Western Blot's mean absolutely nothing without the Elisa?
How come if someone has a positive Elisa and a negative Western Blot then it's negative? That obviously means Western Blot is stronger than the Elisa.
Sorry if I'm coming out annoying but my question still isn't answered.
The doctor told me that my ELISA test was positive and so they sent my blood sample for an Antigen Western Blot test which came back negative. The doctor told me that 99,999% the Elisa test was false because of other factors that might affect the blood but he asked me to retest in one week.
Is it possible that I have contacted Hiv?
If so, how?
I used a condom and it didn't break. I also cannot have Hiv from previus relationships because I tested Hiv negative 9 months ago.
I had my ELISA test a week ago and it turned out to be positive. I am so shocked when I knew it and yet I couldnt help anything about it. I am so down but I can still manage myself to do my ADL's (Activites of Daily Living). I submitted myself for a Western Blot and PCR and the result will be availble in a week or two. How high is the probability that I can have a postive on the latter tests? I need help. Thanks.
Is it possible to detect false -ve result in western blot test after performing ELISA test,what is the condition of person who has come with +ve ELISA test but -ve in western blot test.How much accurate are WB test as if ELISA test can have false +ve test then how can some some say that WB test are accurate if come with -ve result.
A positive ELISA test is always followed by a Western blot test. A positive Western blot confirms an HIV infection. A negative Western blot test means the ELISA test was a false positive test. The Western blot test can also be unclear, in which case more testing is done.
Negative tests do not rule out HIV infection. There is a period of time (called the "window period") between HIV infection and the appearance of anti-HIV antibodies that can be measured.
positive. Now I know why: rapid tests use ELISA method which is not as reliable as Western blot. My reading suggests that ELISA is prone to false positive/negative, which is why after a rapid test gives positive result, they draw blood for Western blot. So you want my advice, don't waste your time with rapid testing and demand a Western blot and don't let them play with your life.
Well, turns out I took a look at my charts and the ELISA results are documented as follows: "Positive, Index >1.1-3.0 (Presumptive Infection)"
While my Western Blot states: "Negative for antibody to HSV-1 and HSV-2 by Western Blot. No evidence of past infection with HSV-1 of HSV-2."
I talked to a nurse from the STD Clinic today who suggested that to be absolutely sure, I might think about taking the Western Blot test again in 6-9 months.
Any thoughts?
Hello All,
Sorry for asking again
So, as I understand it, If a western Blot test is negative 3 months after the exposure (assuming that I had a high risk exposure, which i didn't because I used a condom and you cannot get HIV from oral sex), than you're 100% negative (even if the ELISA is positive).
Is there any chance that the western Blot negative result is false (if the test is performed 3 months after the exposure)?
Here is how the testing works. Positive ELISA the ELISA is repeated if the ELISA is positive again then you are given a Western Blot to confirm the positive tests. The tests are not given any other way and they are given in that order. Had you had a negative ELISA you wouldn't have been given a Western Blot.
Rather, a positive test (any positive test) is then tested using a different test- sometimes a Western blot, other times using another test such a rapid test which tests for different viral proteins than the ELISA. The second test should be done on the same blood specimen as the first test taken. Thus I am a bit surprised at several things:
1. That the Western blot will take 2 weeks
2. That more blood was requested to do a Western blot
3.
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An indeterminate is neither a 