Those other vaccines were created in some cases 50+ years ago. We tend to do things a bit better today than then! Once this data from this run with the vaccine is analyzed your permanent use designation will be given. Let’s stop thinking in terms of the 1950’s...
Let's get to that designation first before mandating it be required. It's not getting rid of the disease like those others have done in the past. Too many variants coming out and these idiots out here that still won't follow the basic CDC recommendations.