The problem is that there is a very real possibility that someone who would go to a bar and test their partner there would then proceed to have unprotected sex instead of using a condom. A test could give them a false sense of security.
While you personally might still use a condom, judging by the reaction to this in the comments on engadget, many would not, not realizing that they actually are putting themselves at greater risk.
When/if this makes this to the FDA, they're going to look at the overall public health risk. If they assess that such a test would lower condom usage, they'd be unlikely to approve it. If you want to market this as such, you'd have to prove that people using it are just as likely to use a condom, and I think you'll have difficulty with that.
The reality is that ELISA tests in the US are cheap and fast enough already; anyone who wants to test themselves faces little barrier. The cheapness of this test is important for countries where that is not the case.
The problem is that there is a very real possibility that someone who would go to a bar and test their partner there would then proceed to have unprotected sex instead of using a condom. A test could give them a false sense of security.
While you personally might still use a condom, judging by the reaction to this in the comments on engadget, many would not, not realizing that they actually are putting themselves at greater risk.
When/if this makes this to the FDA, they're going to look at the overall public health risk. If they assess that such a test would lower condom usage, they'd be unlikely to approve it. If you want to market this as such, you'd have to prove that people using it are just as likely to use a condom, and I think you'll have difficulty with that.
The reality is that ELISA tests in the US are cheap and fast enough already; anyone who wants to test themselves faces little barrier. The cheapness of this test is important for countries where that is not the case.