On page 9 of the package insert of its antibody test, Abbott Labs states, “(an) individual who has antibodies to HIV is presumed to be infected with the virus". But the presumption of being HIV-positive does not equate with actually being HIV-positive.
And under "Sensitivity and specificity", "At present, there is no recognized standard for establishing the presence or absence of antibodies to HIV-1 and HIV-2 in human blood." The statement acknowledges that the specificity of the antibodies detected by the test has not been established. In 1972 a symposium at the Pasteur Institute in Paris discussed the settled procedure for demonstrating the existence of an alleged new virus, and published two papers about it. This procedure was neither followed by Montagnier nor by Gallo, in that they failed to publish an EM of the purification showing the putative virus present. That is, they failed to present evidence for their claims to have discovered a new virus, as the Perth Group states.