I've had that feeling since last night. VDO below (shared a few days ago by
@Raoul) easily explains how the virus evolves and wreaks his havoc, once it enters your body. Generally speaking, its not a major threat for vast vast majority of people. But when it becomes a problem, you are in serious trouble. The numbers also back that up.
My sister told me a few days ago the degradation post ICU can be very rapid and that she's overseen patients die within a few hours after entering ICU. There is very little doctors can do, aside from make you more comfortable, buy your immune system some extra time via a ventilator, and hope your body can repair itself.
The language in the Press Release is written by savvy spin doctors, trying their best to make it sound least alarming as possible. But Im in no doubt, BoJo has entered the genuine problem phase, and could be just hours away from his end.