Hacker News new | ask | show | jobs
by greendesk 1700 days ago
I have a tidbit on the following: >> we'd be looking 10-100x the casualties.

Viruses conform to the distribution of deadliness-vs-reproduction rate. For Sars 1 to spread widely, it has to be less deadly. There are limits to how a virus can both be deadly and contagious.

But just a tidbit on this statement.

2 comments

There are limits to how a virus can both be deadly and contagious.

That leaves out the whole question of incubation time. The scary thing about COVID is that it gives you several days to a week or more to walk around spreading the infection before you even know you have it.

That's why the reaction in the public health sector was so dramatic. It was the sort of thing that could have easily been much worse than it has turned out to be.

And it's still only one or two mutations away from living up to the worst-case fears: a seriously-deadly virus that spreads all over the world before anyone knows what's happening. One that large sectors of the population have already been preconditioned to deprecate or ignore.

Viruses conform to the distribution of deadliness-vs-reproduction rate.

That's a fine rule of thumb but not something to literally bet your life on. When smallpox was introduced to North America, it wiped out a substantial percentage of the population of the continent (This [1] claims 90%, which might be much but it was a lot).

[1] https://www.pbs.org/gunsgermssteel/variables/smallpox.html