[nradov]

SARS-CoV was less contagious and had a higher fatality rate, so it burned out quickly. There's no reliable evidence that it's still circulating in humans.

SARS-CoV-2 is more contagious and less fatal so it has already spread worldwide. It also has multiple animal reservoirs so even if there was some way to simultaneously eliminate the virus from every human (there isn't), we would just catch it again from dogs or deer or something and the pandemic would restart.