First of all, there are 2 viruses that have been eliminated, smallpox and rinderpest. There’s maybe a half dozen more on the verge.Oh, of course. ((Just to be clear, I'm Canadian, living in Japan))
No one is saying do nothing. But, claims that we're going to see 10's of thousands of dead in the next couple of weeks is just fear mongering at its worst. If this virus was really that deadly, wouldn't you think that China would be having a somewhat larger problem? Or Japan?
Heck, our kids go back to school next week. We did our due dilligence. We stayed home for a month. We closed down the country. And, cases have been relatively mild and it's being handled pretty well.
It's like the testing thing. Testing doesn't really do anything. Guess what? This is a virus. They can do exactly nothing for you if you test positive. Zero. Zilch. There has never, ever been a cure for any virus. What they can do is treat the pneumonia that develops from the virus - but, if you don't develop pneumonia, which most people don't, Covid-19 is not going to kill you.
The problem in Italy was that they tested tons of people and then sent everyone who tested positive to the hospital, completely overwhelming their medical care and completely failing to triage the problem. Because they panicked. And, frankly, Italy has largely the same demographic profile as Japan - lots of very old people which meant that the virus was a lot more deadly.
It's a very, very complicated issue. And it's going to take some time to resolve. But, overblown cries that the sky is falling and we're all going to die is not helpful. At all.
Part of the reason epidemiologists and other healthcare professionals are so concerned about Covid-19 is that it is extremely contagious. Here’s a professor explaining the math of its virulence:
With some experts currently predicting as much as 1/4 of the world’s population will contract Covid-19 in this first of several expected outbreaks, the current average estimated global fatality rate of 1% for Covid-19 translates into more than 23m deaths.
Since we have no currently effective antiviral treatments, vaccines, and no known herd immunity*, social distancing and quarantines are our only effective weapons. And in order to use those weapons effectively, we need to test, test, test.
* a recent study indicates that Covid-19 may have originated earlier than we suspect, possibly in a less dangerous form or disguised by other afflictions.