Hiv test pass window?

Where it starts getting controversial, is that not all Gay men are at risk for these diseases. If a Gay man has been tested for HIV and Hepatitis B, and tests negative 6 months or more after his last possible exposure to these viruses, this would then indicate that he is not infected. And if a Gay man has been vaccinated against Hepatitis B, he is not at risk for Hepatitis B. Despite this, the guidelines say that men who have had sex with other men (even one time) since 1977, are excluded from donating. It was in 1977 that HIV had most likely entered the United States.

Requirements for potential organ/tissue donors, are very similar to that of blood donors. If you look at the blood donor criteria (discussed in the posting Blood Donations), for some risk factors, if a person has ever put themselves at risk for bloodborne diseases, they may be excluded from donating (for example persons using needles for non-prescription drugs). For other risk factors, you will note that the exclusions go back 12 months (for example having sex with a prostitute, or having sex with a person known to have Hepatitis or HIV). Although screening tests for HIV and many other bloodborne diseases will most often pick up the infection by 6 months after exposure (and up to 12 months for Hepatitis C), to keep the blood supply (and the organ/tissue supply) as safe as possible, persons who have put themselves at risk for HIV and other bloodborne diseases are excluded from donation. The blood/organ screening system takes an extra-cautious approach, to keep the blood and organ/tissue supply as safe as it can possibly be. For certain risk factors, the exclusion goes back all the way to 1977 (rather than the past 12 months). This includes persons who have engaged in prostitution (having sex for drugs or money), and men having sex with other men. Why the difference between 12 months for some risk groups, and back to 1977 for others?

From a strictly clinical point of view, there

I been test out to 20 months from male raped with neg tests so it will be okat too give blood

Is this a question? I know that sometimes when you have tattooes, they prefer you not donate blood. Well, I am also guessing that back in 1977, HIV cases were more deadly and common than they are now.