Doc explains how Coronavirus kills. Jo points out obvious: Stop the Flights or Close the schools, lockdown everyone

Fun subject of the day: How Coronavirus kills

No seriously, this is matter-of-fact, youtube-at-its-best, concise, cartoony, and smart.

Think of doctors as Body-Engineers. The problem to solve today Engineer-readers — is how to keep blood supply oxygenated when lungs are highly inflamed, filling with fluid, and the delicate thin membranes of lung tissue can’t cope with the sheer forces of rapid collapse and expansion. As well, if oxygen levels drop, even unconscious patients will breathe involuntarily — out of synch with artificial ventilation machines. The sensation of suffocation creates the urge to breath faster and harder. . The great news is ICU staff are getting much better at keeping people alive when they get ARDS (Acute Respiratory Distress Syndrome) which can happen with other diseases (like Influenza). Seems, the ICUs can keep 84% alive while they wait for the inflammation to subside and the damage to heal. Though the DIY version at home probably won’t be so effective.

Not enough beds

Obviously, this explains my obsessive interest in the percentage needing ICU care and also the Ro (rate of reproduction or spread). With a shortage of ICU beds, slowing the spread makes a life-and-death difference to state the bleeding obvious. […]