An end to the ban on gay and bisexual men from donating blood — promised by Prime Minister Justin Trudeau in 2015 — is set to be recommended within weeks in favour of new screening criteria based on sexual history and behaviour.

Canadian Blood Services is preparing to ask Health Canada to allow it to scrap questions about gender or sexuality, basing screening on higher-risk sexual behaviour instead. Potential donors could be asked if they have had multiple sexual partners, and about their sexual behaviour instead of their sexuality and gender.

“Sexual behaviour, not sexual orientation, determines risk of sexual transmission of HIV. Our proposed criteria will aim to precisely and reliably identify those who may have a transfusion-transmissible infection, especially in the window period, regardless of gender or sexual orientation,: aid Catherine Lewis, a spokeswoman for Canadian Blood Services, who declined to comment on the specifics of the recommendation.

Currently men volunteering to give blood are asked if they have had sex with a man in the last three months. Women wishing to donate are asked if in the last three months they have had sex with a man who in the last 12 months had sex with another man.

The blood service says it is preparing to cite evidence from countries which do not ask donors such questions, as well as research on risk of HIV transmission, in its submission to Health Canada within the next six weeks.

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A study of research into HIV transmission between January 2001 and May 2012 by the Public Health Agency of Canada found that “all studies consistently reported that anal intercourse is a higher-risk act than vaginal intercourse, which in turn is a higher-risk act than oral intercourse.”

The way the screening is currently set up lacks nuance, and also doesn’t address people who are transgender, two-spirit, or otherwise don’t confirm to binary genders, said Nathan Lachowsky, one of several researchers whose work will inform Canadian Blood Services’ application.

“There’s a way in which to create solutions that are gender neutral, meaning it’s not about who you are in terms of your sex and gender,” said Lachowsky, an assistant professor in the School of Public Health and Social Policy at University of Victoria. “That simplifies the system and makes it more accessible to more Canadians.”

The U.K. criteria for blood donation, which Blood Services says it has been considering along with that from other countries,does not include questions about sexual orientation. It asks potential donors whether they have had multiple partners and engaged in anal sex.

Gay and bisexual men who have had the same partner for three months or more can give blood in the UK. But anyone who has had anal sex with a new partner or multiple partners in the previous three months _ regardless of their partner’s gender _ must wait three months before donating.

As it stands now in Canada, a gay man who has had sex with one partner in the last three months cannot give blood, but a straight man can, no matter how many partners he has had sex with during the same time frame.

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While Canadian Blood Services tests all of its donated blood products for a whole host of diseases, including HIV, the agency says no test is 100 per cent accurate.

That’s why eligibility screening is such an important part of limiting the risk to blood recipients, according to the agency’s website.

Lachowsky, who did not comment on the specific questions that will be included in the Canadian proposal, said a neutral approach makes much more sense than basing restrictions on gender and sexuality.

“That means that we’re increasing, in my mind, the safety of the blood system broadly,” he said.

Trudeau has come under pressure from MPs and the LGBTQ community to scrap questions for donors aimed at gay men. During the election in September, Trudeau promised a change was imminent.

But Randall Garrison, the NDP spokesperson on LGBTQ affairs, said the change is “long overdue.” He said many countries, including Italy, have no such criteria “without any problems.” The MP has been pressing ministers to end the gay and bisexual blood-donation ban for almost ten years.

“I have been calling for a shift to risk-based criteria for a decade. I have argued there are two things wrong (with this policy): restricting the blood supply and promoting homophobia,” he said.

Health Canada, which regulates the blood service, can only change the criteria if evidence is presented showing this will not increase risk.

Canadian Blood Services has been analyzing available research to find the safest way to make the change. This includes an MSM (men who have sex with men) research program and a 2020 For the Assessment of Individualised Risk (FAIR) report from the U.K. about blood donation and risk.

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The FAIR Report highlighted anal sex and “chem sex,” or sexualized drug use, as a risk factor, but also warned that questions about anal sex could deter new donors.

“The safety of Canada’s blood supply will always be paramount for us. We have more evidence than ever before, stemming from the MSM Research Program, international data and Canada-specific risk modelling, that indicates sexual behaviour-based screening will not introduce risk to the blood supply,” Lewis said.

Canada introduced a lifetime ban for gay men in 1992. In 2013 it allowed blood to be accepted from a man who abstained from sex with another man for at least five years.

The waiting period then dropped to one year, and became three months in 2019.

Once Canadian Blood Services submits its application to change the screening requirements, it will be up to Health Canada to approve it. The process could take several months to a year before the changes take effect.

© 2021 The Canadian Press

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