Why are New Viruses So Much Worse?

Photo by CDC on Unsplash

So, some of us are panicking about COVID-19, some of us are trying to downplay it. All of us, I think, are a little bit concerned.

But one thing I’ve noticed is that a lot of people don’t understand why this virus is so bad. It’s related to several cold viruses, after all. Why is it killing people? Why are we so afraid of it?