Switzerland’s gay blood donation now matches the US - 1 year deferral.
https://en.wikipedia.org/wiki/Men_who_have_sex_with_men_blood_donor_controversy
I wonder if they tell you the blood is coming from a gay ?
Perhaps the blood from gays should first be used on only gays and see how that goes for awhile.
Actually, that's not a bad idea!
Since such blood recipients might already be infected with numerous sexually-transmitted diseases prevalent in their milieu, there'd be relatively less chance of a new infection.
(I'm aware that that isn't really true - that even an HIV-positive person should avoid becoming reinfected - possibly with a different strain.)
Regards,