Before blood tests were developed for hepatitis virus and later for HIV, it made sense to screen potential blood donors by whether they were members of broad risk categories. As tests have improved (and I think we still don't have those for prion based diseases like mad cow disease), it makes more sense to rely on testing, although risky behavior that might have recently resulted in infection, not yet detectable by blood tests, is still a screening factor.
All this is by way of saying that the current U.S. limitation on donation by homosexual men is out of date. Martha Gershun points me to this recent op-ed in the Baltimore Sun:
As a sexually active gay man, I can’t donate blood or tissue in America. That’s ridiculous | By GREG BRIGHTBILL
"My blood type is O negative, I am healthy, I can run a half-marathon, I do not smoke or use drugs, I only have two to three drinks a week, and I am in a committed relationship. Yet, due to homophobic stereotypes and outdated policies, gay men like myself -- termed “MSM” or “men who have sex with men” -- cannot freely donate blood and soft tissue in America.
"According to the most recent Food and Drug Administration guidance, updated last year, MSMs must undertake a three-month deferral from male-to-male sexual activity before blood donation. Shockingly, that’s an improvement on the original full ban on blood donation implemented in 1985 (for any male who had a sexual encounter with another male after 1977) and the 2015 version of the policy, which required a 12-month deferral.
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In the UK, the guidelines have been changed, this month, to reflect the increased availability of testing. Here's the latest from the UK's NHS Blood and Transplant:
Landmark change to blood donation eligibility rules on today’s World Blood Donor Day
"New eligibility rules that will allow more men who have sex with men to donate blood, platelets and plasma come into effect this week, marking an historic move to make blood donation more inclusive while keeping blood just as safe."
"From today (Monday) – World Blood Donor Day – the questions asked of everyone when they come to donate blood in England, Scotland and Wales will change. Eligibility will be based on individual circumstances surrounding health, travel and sexual behaviours evidenced to be at a higher risk of sexual infection.
"Donors will no longer be asked if they are a man who has had sex with another man, removing the element of assessment that is based on the previous population-based risks.
"Instead, any individual who attends to give blood - regardless of gender - will be asked if they have had sex and, if so, about recent sexual behaviours. Anyone who has had the same sexual partner for the last three months will be eligible to donate.
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“We screen all donations for evidence of significant infections, which goes hand-in-hand with donor selection to maintain the safety of blood sent to hospitals. All donors will now be asked about sexual behaviours which might have increased their risk of infection, particularly recently acquired infections. This means some donors might not be eligible on the day but may be in the future."
...
"Under the changes people can donate if they have had the same sexual partner for the last three months, or if they have a new sexual partner with whom they have not had anal sex, and there is no known recent exposure to an STI or recent use of PrEP or PEP. This will mean more men who have sex with men will be eligible to donate.
"Anyone who has had anal sex with a new partner or with multiple partners in the last three months will be not be able to give blood right now but may be eligible in the future. Donors who have been recently treated for gonorrhoea will be deferred. Anyone who has ever received treatment for syphilis will not be able to give blood."
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