Blizzard has launched a month-long blood drive to celebrate the release of Diablo IV's second season, Season of Blood. There will be three tiers of rewards that will unlock as more people donate, with the final reward being a sweepstakes for a custom liquid-cooled PC infused with human blood.
New fear unlocked: Somehow getting a blood transferable disease from working on my pc
More likely than not, any BBP would die before transferring to you through an open wound months later. HIV can only survive outside the body for minutes. Not sure how long Hep C lasts, but I can’t imagine it would be longer than a few days at most.
6 weeks:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3969546/
Gross, but I don’t imagine anyone would be doing a fluid swap before the one year mark (normally, without blood)