3 ms·Shouldn't it warrant a research if even smaller dose has even higher efficiency?by aquadrop 6y agoShouldn't it warrant a research if even smaller dose has even higher efficiency?pessimist 6y agoYes. But clinical trials are expensive ($100m plus) and time consuming._Gyan_ 6y agoIf both regimens underwent Phase 2 testing, there should be data on comparative immunogenicity.