It’s a very scary illness, my DDs FIL died from Sepsis 10 years ago and a very dear friend of my mothers died not so long ago, they both had chest infections after the Flu, they weren’t elderly or infirm, but thought it was just something that would get better with Paracetomol.
By the time the families had realised what was wrong it was too late, DMs friend died within 24 hours, but my DDs FIL was alive for about 6 weeks in Intensive Care and it was absolutely awful.
TBH the chance of getting to the Dotors in time to catch this is slim, hence the high death rate.