Viral vector vaccines are not the same as traditional inactivated virus vaccines, and are in fact similar to mRNA vaccines in some important ways: 1. mRNA vacci

Viral vector vaccines are not the same as traditional inactivated virus vaccines, and are in fact similar to mRNA vaccines in some important ways: 1. mRNA vaccines and viral vector vaccines deliver genetic instructions so your own cells produce the targeted proteins 2. Like mRNA vaccines, there has never been widespread use of a viral vector vaccine prior to this year.