This present novel corono is unlike previous ones. They didn't shutdown the world while having a high rate of infection & deaths. A vaccine may never come & there is still much that isn't known about COVID-19.
"Since the mid 60's the human coronaviruses (HCoV), represented by HCoV-OC43 and HCoV-229E, were generally considered relatively harmless viruses. This status changed dramatically with the emergence of SARS-CoV in 2002/2003."
https://www.ncbi.nlm.nih.gov/pubmed/17346212
https://www.niaid.nih.gov/diseases-conditions/coronaviruses-therapeutics-vaccines
"There are yet to be vaccines or antiviral drugs to prevent or treat human coronavirus infections."
"Since the mid 60's the human coronaviruses (HCoV), represented by HCoV-OC43 and HCoV-229E, were generally considered relatively harmless viruses. This status changed dramatically with the emergence of SARS-CoV in 2002/2003."
https://www.ncbi.nlm.nih.gov/pubmed/17346212
https://www.niaid.nih.gov/diseases-conditions/coronaviruses-therapeutics-vaccines
"There are yet to be vaccines or antiviral drugs to prevent or treat human coronavirus infections."