Hi Becky, as I’ve said in my original post my comments actually back Biosure’s claims about its test accuracy. Your test instructions clearly state that if the user was to receive any form of a positive line whether that being a clear or faint line then additional testing would be required. If the faint line has been shown on a Biosure test but nothing on a 4th generation test then this could indicate that the Biosure test is more accurate due to it testing for recumbent antigens and has in fact picked up something that would justify further additional testing. Your instructions also state that research tests have been carried out on samples with co-infection To other STD’s and sensitivity has been approved. So with this being the case then it could mean that the test worked correctly based under these conditions. Let me reiterate that I am actually for the use the of these Biosure test and not against it.

Hi Anon04, thank you for your reply. Would you mind contacting me directly via email to discuss your results further? My email is bsmith@biosure.co.uk, this would really help in us understanding more about possibly why you received faint positives on both tests. Kindest regards, Becky

Hi M2020, There is no evidence to suggest that HIV-HBV/HCV coinfection can delay seroconversion nor give false results when using our HIV self test. It may simply be that the result read by Anon04 was not clear enough. It is not common for users to incorrectly read results but we understand that the act of reading a result may sometimes be very nerve-wracking. In the past, users have read the wrong result due to rigorously observing their test until they convince themselves that there is a line when in fact there is not. We are not saying that Anon04 has read his result wrong but reading your result relies heavily on subjective interpretation and sometimes this is the reason for false positive results. Becky

Anon04 if you tested with the bio site after 12 weeks, received a faint positive and then received a negative test with your clinic then I would strongly recommend you seeing either your GP and or a private GP. You could potentially have a coinfection which delays another test in picking it up due to sensitivity and specificity. Sexual clinicians and GP’s have refused to acknowledge to me that viruses such as hepatitis could delay antibody creation For HIV 1 & 2 but medical journals dating back to 1982 have described situations where this has occurred. I am going to post a separate response to Biosure shortly because I personally think that their test kits are more accurate than routine laboratory tests. Thanks M

Hi I tested after 12 weeks with the biosure tests and the clinic test

Hi Anon04, Can I ask how long after your possible exposure you tested using our tests? Kindest regards, Becky