Talking about home testing for HIV

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anxious tester



false negatives because of co-infection?

More than 7 years after possible exposure I had 4 negative Biosure tests and a laboratory antibody test through my GP conducted over 5 month period. I also had a negative VDRL and negative TPHA syphilis test. Could a co-infection syphilis-HIV cause all the HIV tests and the Syphilis tests to be false negatives (cancelling each other out)? I have lots of symptoms including white tongue for 2 years, pain in sides, also had weak legs and Hives rashes which have now gone away. Been panicking for more than 2 years about the test results.

1 Responses

Francesca Bard, BioSure (UK) Ltd
 Work on 18th December 2018

Hi anxioustester. There are really only two things that can affect the result of a BioSure HIV self test. The first being on anti-retroviral treatment for HIV and the other would be if you have been vaccinated against HIV. The chances of one BioSure HIV self test being a false negative is extremely low and 4 is virtually impossible. I believe the symptoms you are describing are most likely caused by something other than HIV, these could even be stress related. I hope this helps answer your questions and I hope you have a lovely Christmas. Kindest regards Francesca Bard, BioSure (UK) Ltd

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