Health & the Body - 74 free documentaries about pandemics & outbreaks.
Start with The Plague: How Did One Village Survive? (49 min, Timeline), then Invasive fungal infections - The new threat (42 min, DW Documentary). All 74 documentaries here are free to watch from their makers' official uploads. To read deeper, the top-rated book on pandemics & outbreaks is The Great Influenza by John M. Barry.