Blood donation deferral policies among men who have sex with men in Brazil
Thelma T. Edson Z. Martinez a. Reevaluation of the deferral from voluntary blood donation by men who have sex with men MSM is being discussed in several countries, motivated by the need to ensure a blood supply free from transfusion-transmissible infections e. Policies being considered include: permanent exclusion for any male-male sexual encounter, temporary deferral 3 months, 12 months, 5 years from the last encounter, or specifying behaviors that differentiate MSM at high risk from those at low risk. Current Brazilian regulations defer MSM from blood donation for months after the last male-male sexual encounter. Broad epidemiological evidence indicates that many MSM are at increased risk for HIV in the present era, and few data exist to distinguish which men are likely to be in the immunological window for detection of these infections.
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