can never penetrate the cell certain infections of caev are subclinical while others are overt overt infections are more aggressive and more likely to displace hiv from its locus after infection hiv becomes incorporated into the dna the only way to displace it is to replace it with a stronger virus caev displaces hiv accordingly to one embodiment of the present invention an in vitro diagnostic device and protocol identifies overt aggressive strains of caev that are effective at displacing hiv in the human genome according to one embodiment blood identified as having been infected with caev is mixed with blood that is infected with hiv thereafter the viral effect if observed if hiv in the mixed blood is diminished the caev blood used in the test possesses an aggressive strain of caev the blood is not only compatible but is therapeutic to the treatment of hiv for example more than just being preventative meaning that the hiv invention does not increase this caev infected blood actually treats that hiv and reduces its presence this identified blood has a caev aggressive nature then a further step can be accomplished to show that it has gene loci and protein overlap moreover you can conduct a gene map sequencing and protein map sequencing to verify the overlap the greater the overlap the greater the likelihood that the strain will work the test that shows that the virus is chronically active and aggressive is simply observing the effect of the mixed blood samples the blood samples having the greatest overlap will produce the most aggressive nature but.