Donating stem cells to a stranger is deeply personal, altruistic – and for Melissa Deleary, just another day on the job. Melissa’s story begins about seven years ago. As a health policy analyst with the Ontario Federation of Indigenous Friendship Centres, she organized a recruitment event in her own workplace for Canadian Blood Services Stem Cell Registry. As the event organizer, she thought by swabbing her own cheek to collect a DNA sample for the registry she’d inspire others to do the same. Then in June 2019, while out for a stroll on her lunch break on a busy Toronto…