This week, my school hosted a blood drive. Gay men were not allowed to donate. I was so repulsed by this that I, a female friend, refused to donate just on principle. Is there some reason why gay men are still excluded from blood drives? Are they still so much more likely to be HIV positive than heterosexuals? Is this a policy from a time before blood screening was required? Someone said it was...

This week, my school hosted a blood drive. Gay men were not allowed to donate. I was so repulsed by this that I, a female friend, refused to donate just on principle. Is there some reason why gay men are still excluded from blood drives? Are they still so much more likely to be HIV positive than heterosexuals? Is this a policy from a time before blood screening was required? Someone said it was...

This week, my school hosted a blood drive. Gay men were not allowed to donate. I was so repulsed by this that I, a female friend, refused to donate just on principle. Is there some reason why gay men are still excluded from blood drives? Are they still so much more likely to be HIV positive than heterosexuals? Is this a policy from a time before blood screening was required? Someone said it was...

Even though kidney exchange became an important source of kidney transplants over the last decade with the introduction of market design techniques to organ transplantation, the shortage of kidneys for transplantation is greater than ever. Due to biological disadvantages, patient populations of blood types B/O are disproportionately hurt by this increasing shortage. The disadvantaged blood type...