So a lot of people want to know why COVID-19 is such a big deal, even as death rates are climbing and ICUs are overwhelmed. After all, diseases have always existed, right? So why is this one the crisis?
It's a big deal because this virus has been able to survive and then thrive in Homo sapiens, humans, for the first time. Hence the name "new". As such, our immune systems are reacting full-force to this foreign antigen. The immune response itself can kill.