The US stock markets are rising like crazy after the "GREAT" vaccine news is released.
https://www.cnbc.com/2020/11/08/election-stock-market-futures-open-to-close-news.html
It is astonishing that the US vaccine news can cause such euphoric stock market movements in the US whilst China's vaccine is also very effective in preventing Covid but doesn't trigger the same stock effect.
https://www.globaltimes.cn/content/1206008.shtml
The US investors are jumping the gun too early because the scientists have not confirmed the longevity of the vaccination since the scientists need more time to compile and verify the data.
Our natural immunity could only last about 4 months. If the US vaccine is only able to trigger our natural immunity against Covid, then the immunity period won't be too long too.
http://sg-stock.blogspot.com/2020/08/covid-19-immunity-can-only-last-about-4.html