Close X
Get more out of WDDTY.com
by joining the site for free
Free 17-point plan to great health
Twice weekly e-news bulletins
Access to our News, Forums and Blogs
Sign up for free and claim your
17-point plan to great health
Free 17-point plan to great health

Twice weekly e-news bulletins

Access to our News, Forums and Blogs
OR

If you want to read our in-depth research articles or
have our amazing magazine delivered to your home
each month, then you have to pay.


Click here if you're interested
Helping you make better health choices

In shops now or delivered to your home from only £3.50 an issue!

Subscribe!

Hiv test giving false positives in 5% of all cases
About the author: 

Thousands of people wrongly believe they are HIV infected because of the standard Western blot test which is giving false positive results in nearly 5 per cent of cases

Thousands of people wrongly believe they are HIV infected because of the standard Western blot test which is giving false positive results in nearly 5 per cent of cases.

This alarming inaccuracy has been uncovered by University of California researchers, who urge anyone who has been tested positive by a Western blot result to seek further advice, and possibly to be tested again. There is a better than 50 per cent chance that the test was a false positive if one of the three gene products tested known as p31, or polymerase protein was a negative.

The researchers have found that the p31 test in the Western blot procedure is very likely to throw up false positives. They tested the blood of five million donors and found that, of the 421 donors who were tested positive by Western blot, 39, or 9.3 per cent, of these were possibly false positives because they had not reacted to the p31 element of the test. Of these, 20, or 51.3 per cent, were proven by the PCR test not to be infected with HIV-1. This means that the Western blot test was giving a false reading in 4.8 per cent of all cases (JAMA, 1998; 280: 1080-85).


You may also be interested in...

Latest Tweet

About

Since 1989, WDDTY has provided thousands of resources on how to beat asthma, arthritis, depression and many other chronic conditions.

Start by looking in our fully searchable database, active and friendly community forums and the latest health news.

Positive SSL Wildcard

Facebook Twitter

Most Popular Health Website of the Year 2014

© 2010 - 2017 WDDTY Publishing Ltd.
All Rights Reserved