Well, if it was a "disappointing 2", it wouldn't be classified a CAT 3 Biohazard (technically it's a CAT 4).
And when was the last time over 1 Billion (!) people worldwide - tendency increasing - have ever been placed under lockdown? With all Economies being shutdown?
Remember if enginered - it's a Prototype at best. A science project then, which got loose. That'd make it an unfinished thing - luckily.
Its missing broad lethality is one of the only two remaining details that prevent it from being a global catastrophe of unparalleled scale. Something we should be darn happy about.
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- more than sufficient disruptive potential? Check. Should be obvious.
- sufficient lethality to overwhelm even the best global healthcare Systems if not ultra-aggressively countered (i.e. massive lockdowns, entire economies be damned)? Check
- highly resident? Check, extremely unusual for a Virus and hallmark of any military Biological or Chemical compound. With upto 9 days (record observed), it's unique for a Virus AFAIK
- contagious? Check, its genetic modifications make it by 3 to 4 orders of magnitude more contagious than ordinary/common Viruses, acting like a highly effective booster into the host
For a Virus, nothing I'd call "disappointing". Far from it. I'd call that "damn dangerous" instead, causing entire continents to be turned upside down... but that's just me.
Yeah, that is great and all, but we have actual classification scales for viruses based on actual statistics. And when I say that it is a '2', I mean that it is a '2'. That is not my personal opinion, nor is it contingent on the opinion of anybody else. Have a peek at this:

The MicrobeScope – Infectious Diseases in Context — Information is Beautiful
How deadly & infectious are the major diseases? A visualised ranking of Bird Flu, Ebola, SARS, Malaria and other infectious diseases.

As you can see, COVID19 is neither very contagious nor is it very deadly, relatively speaking. For comparison, avian flu is about 60x more deadly and Dengue Fever scores 5x higher on the contagiousness scale (which is based on R0, so the effect is exponential! and far beyond 5x more contagious). To put that into numbers: after five 'spreading contacts' a single C19 patient would result in 2^5=32 infected. With Dengue fever that would be 11^5=161.000 infected. Notice the difference? Now, to re-iterate: this is not by opinion. These are facts. There is nothing particularly impressive about this virus at all.
And if people would understand this a bit better maybe they would then also begin to understand why the scientific community has been so adamant about needing proper protocols and institutions in place to prevent and contain this kind of crap. Because this is not a Chinese bio-weapon, and there will be far more problematic viruses in the future. This is not a special unique event. This is a pretty mediocre virus, and thank god for that. Because right now we have a chance to mitigate the damage by going completely balls-to-the-walls on this little .
Look at what has happened to Italy. Now picture what would have happened if this virus would have been 10x more contagious (remember, R0 is exponential) and 'only' 10x more deadly. That is easily within the realm of possibility through normal evolution of viruses RNA and it would have completely wiped out modern civilization from the entire globe.
We are currently facing the worst crisis since WW2 in the west. We need to go all-out the coming months. But we are still playing on 'easy mode'. And we do well to remember that and stop pretending this is ulta-extreme-china-superweapon.
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