&gt;Plus, they have successfully rolled out the HSV1 test. It&#x27;s seems reasonable to expect that more will follow.<p>The biggest criticism of their overall method that I&#x27;ve seen, is that blood from the finger is too likely to be contaminated to give good results for many of the tests they are performing.<p>Testing for the presence foreign virus (or virus antibodies) may be different in this regard than testing the level of naturally occurring chemicals.