Talking about home testing for HIV

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How accurate at 46 days / 6.5 weeks?

Hi, wonder if you can help. I have taken your test 46 days post protected exposure, the result was negative. Although 18 days ago I felt onset of possible symptoms ie muscle/joint pains, with possible swollen glands, no other symptoms. How accurate is the test at 46 days, also assuming the pains are ARS symptoms, shouldn’t my body already created antobodies which would of been detected by the test.

Really worried, hopeful for a reply.

Thank you,


5 Responses

Francesca Bard, BioSure (UK) Ltd
 Work on 29th January 2019

Hi Worried Well. We do not ask for our clients results so I do not know when they test or if they have received a different result after 12 weeks unfortunately. I can say your exposure is a low risk exposure and the chances of contracting the virus through protected sex is very low. I hope this helps. Kindest regards Francesca Bard, BioSure (UK) Ltd

 Used on 24th January 2019

Hi Francesca, hope you are well. Have you ever heard of your tests changing from negative to positive after 6.5 weeks after exposure? Also what is the risk from protected intercourse with CSW, no apparent breakage of condom to best of my knowledge as I believe they are designed to completely break down if there is breakage. Thank you

Francesca Bard, BioSure (UK) Ltd
 Work on 23rd January 2019

Hi Worried Well. Yes, a negative test result is considered conclusive after this time period. I hope this helps put your mind at rest. Kindest regards Francesca Bard, BioSure (UK) Ltd

Worried well
 Used on 23rd January 2019

Hi Francesca, thank you for your reply. Would the test nd seen as conclusive at 81 days?? Thank you

Francesca Bard, BioSure (UK) Ltd
 Work on 22nd January 2019

Hi worriedwell. The accuracy of the BioSure HIV Self Test never changes. Our test looks for the antibodies to HIV rather than the virus itself and due to how the human body works people produce these at different rates. At 6 weeks 95% of people have produced these, however at 12 weeks 99.9% of people have produced the antibodies. This is why a negative result can only be conclusive 12 weeks post possible exposure. The symptoms you are describing are much more likely to be caused by something other than HIV. You are correct in assuming that if these symptoms are related to HIV then you would’ve received a positive test result however there is no way of confirming that these symptoms are related to HIV. My advice would be to re-test at 12 weeks in order to confirm your negative result. Alternatively you could visit a GUM clinic that will be able to confirm the result. I hope this helps but please do not hesitate to contact me further. Kindest regards Francesca Bard, BioSure (UK) Ltd

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