MSM - Irish Blood Transfusion Service


Change to deferral criteria for MSM donating blood

Why did the IBTS decide to change from the lifelong deferral to one year for MSM since their last sexual contact?

There are many reasons why a person may not be eligible to donate on the day they attend a donation clinic.  The IBTS constantly reviews these deferral criteria and makes changes as appropriate.  In the case of men who have sex with men (MSM) a lifelong deferral has been in place since the emergence of HIV in the 1980s.  In light of changes to this deferral criterion in other countries the IBTS decided to review its lifetime deferral of MSM donating. 

The IBTS held a conference on 21st/22nd April 2016 at which data was presented from countries that had changed their deferral criteria for MSM.  The data showed that there had not been an increase in the number of HIV positive blood donations since the change in the deferral policy.  It was concluded that international experience had shown that a one year deferral is as effective as a lifetime deferral from the point of view of protecting the blood supply against the risk of HIV transmission.

What does this mean in practice?

This means that a man whose last sexual contact with another man was more than 12 months ago will be eligible to donate if he meets the other donor selection criteria.  A man who has had oral or anal sex with another man in the past 12 months will still not be eligible to donate, even if he used a condom.

What about the risk from emerging infections?

While the one year deferral will protect against the risk of transmission of HIV there is concern that it may not be sufficient to deal with an emerging infection.  Therefore the Board of the IBTS decided that any person who has had a notifiable sexually transmitted infection, such as chlamydia or genital herpes will be deferred for 5 years after completion of treatment.   Persons who have had syphilis, gonorrhoea, lymphogranuloma venereum (LGV) or granuloma inguinale are already permanently excluded from donating.  It was also decided that person who have taken medication to prevent HIV infection i.e. pre or post exposure prophylaxis (PrEP/PEP) will be deferred from donating for 5 years thereafter.  It is hoped that these measures will add an additional layer of protection against emerging infections. 

In addition, there are other measures in place to quickly identify new emerging infections if they occur and to help to protect against these infections entering the blood supply.  These measures include an international surveillance network and rapid development of new molecular tests.

When will the change come into effect?

The change will be introduced on 16th January 2017

How does the changed criteria impact people who were previously deferred?

Persons who were deferred under previous criteria will be eligible to donate if they meet the new donor eligibility criteria

Will the IBTS consider further changes to the policy in the future?

The IBTS will closely monitor the effects of the current changes over the next few years in order to help ensure that blood safety is maintained.  At the same time, the IBTS will continue to work in this area and review its donor deferral policies to ensure they reflect the most up to date scientific knowledge.  This process must be data driven, so the timeframe for future changes is not something that can be predicted.