The study also found that risky sexual behaviour was more prevalent among men who were aware of their HIV-positive position than among males who had been undiagnosed or HIV unfavorable; more so in those who had been HIV positive longest even. Dr Williamson stated: Our study shows a obvious dependence on a re-invigorated and targeted approach to HIV prevention among gay men in the UK. We need to promote condom use and risk decrease strategies even in men who are frequently tested.Spit at the TSA agent who is molesting you, in other words, and they may use that saliva to scan your DNA and store it in a national authorities database. Why would they would like to do that? We can only imagine. Remember, it was Alex Jones who broke the tale about hospitals secretly taking blood samples of babies and handing them to the federal government for make use of in a nationwide genetic database to a Virginia firm to build up a portable DNA testing device.