Sepsis is not highly infectious and does not spread rapidly - that is the key difference. Covid-19 is, as far as I can determine, more infectious than any serious disease except measles, and together with its relatively long incubation period this means that unchecked it spreads like wildfire. And it has a CFR at least ten times* that of Flu, has no effective treatment, and at least in some cases (how many?)has long term illness.
These are the reasons it is important.
*If we look at Australian cases which are concluded, that is, either recovered or died, currently the CFR is around 3%. Seasonal Flu is about 0.1%







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