Social network giant Twitter has banned onsite blood drives in its offices worldwide where regulations do not permit blood donations from gay or bisexual men, a move that LGBT-rights advocates say is a first for a public technology company.
The San Francisco-based company made the decision after one of its U.S. employees, a gay man, was turned away from donating blood at the company's headquarters, a spokeswoman said on Monday.
Blood donations from gay men have been barred since the discovery that HIV, the virus that causes AIDS, could be transmitted through transfusions.
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