Hi there, and thanks a lot for contacting the AIDS Vancouver Helpline for your HIV/AIDS related health information. It seems you're concerned about the possibility of HIV transmitting during an encounter. We're happy to answer your question for you.
Here is a bit more information on the tests you've had:
|Test Name ||Method ||Window Period ||Conditions |
| 4th Generation EIA ||Blood test that looks for antibodies AND p24 protein antigens. Commonly referred to as the "combination," "combo" or "DUO" test. || P24 protein is detectable immediately after infection but only for the first few weeks. The antibody (ab) test has a window period of 4-12 weeks post exposure. ||This test is widely available in North America. Most HIV specialists consider this test to be conclusive at 6 weeks but official HIV testing guidelines still recommend re-testing at 12 weeks for conclusive results. Conclusive at 3 months post exposure|
| Rapid or “Point-of-Care” ||Blood or oral swab test that looks for antibodies. || Up to 95% of infections are detectable within 4-6 weeks post exposure. Most people develop detectable antibodies in 21-25 days. ||The rapid test is a type of 3rd Generation test. Two forms available: finger prick blood sample or oral swab. Oral swab test is most common in the U.S. but due to false positives in Canada it is not approved and blood collection is more likely. Many places in the U.S. and abroad may charge a fee for rapid testing. Conclusive at 3 months post exposure|
| Western Blot ||Immunoblot which detects HIV antibodies directed against specific HIV proteins. Interpreted according to Canadian consensus guidelines. || 4-6 weeks, may take up to 8 weeks for a positive result || Standard test protocol, as confirmatory test. Considered to be "gold standard" for confirmation of HIV infection. If test results are indeterminate, PCR NAAT Tests are usually performed to confirm an infection. Accuracy is 99.9% after 4-6 weeks |
You'll see in the chart that the RAPID and DUO tests are considered conclusive, meaning their results are taken as accurate, 3 months (or 90 days) post exposure. So you'd have to wait until at least July 5 for these tests to be considered accurate. This is not to say the tests you've had are not very good indicators of your status, they are just not considered conclusive.
You'll also see in the chart that the Western Blot test you've had would be conclusive after at least May 5-May 19 (so will be conclusive). It is unlikely that it will give different results, as the tests you've had are good indicators of your status. This test will be conclusive, and you will not require further testing.
Thanks a lot for contacting the AIDS Vancouver Helpline with your question, we hope it has been answered fully.
AIDS Vancouver Helpline/Online