Hyenas and vultures play a role in driving down the risk of disease outbreaks, but their decline due to human behaviour is putting our health in danger.
Also, we discuss Lifeblood's changes which bring down some of the barriers facing gay and bisexual men, and transgender women, who'd like to donate blood or plasma. 
Pain education could help people with osteoarthritis get the most out of exercise programs — and even walk the Camino. 
Plus there's a push to extend genetic carrier screening to cover dozens more conditions. 


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