There has also never been a massive global attempt at a coronavirus vaccine. Also many coronaviruses have wildly different behaviors and mutation rates. I think

There has also never been a massive global attempt at a coronavirus vaccine. Also many coronaviruses have wildly different behaviors and mutation rates. I think the answer right now is nobody knows for sure, but it will probably take at while for a vaccine if it's developed successfully, which would mainly at that point serve to prevent repeated lockdown cycles as it returns seasonally. Here is some further reading: https://blogs.sciencemag.org/pipeline/archives/2020/04/15/coronavirus-vaccine-prospects https://blogs.sciencemag.org/pipeline/archives/2020/04/15/co... https://www.nature.com/articles/d41573-020-00073-5 https://www.nature.com/articles/d41573-020-00073-5