Coronavirus: vaccine with ‘incomplete’ immunity could offer a solution to pandemic, experts say
https://www.scmp.com/news/world/united-states-canada/article/3080131/coronavirus-vaccine-incomplete-immunity-could-offer
In most of the fields, it would be impossible for people to make something complete. To make bad things better, an incomplete thing would be enough rather than waiting for inventing a complete thing.
So, vaccine with incomplete immunity should be used as earlier as possible.
