Sport has two sex categories, but biology isn't that simple

The Olympics has reignited a century-old debate about sex categories in sport — and what happens when policy doesn't align with biology.  A look at the Legionnaires' disease outbreak in Melbourne. Also, a response to union calls for reproductive leave to support women going through menopause.  Why people with type 1 and type 2 diabetes are at an increased risk of severe injuries.  And the history of Hepatitis E, which one expert says Australia needs to take more seriously.