The mRNA technology in the two-dose vaccines gives us better, more consistent protection than the virus does. Author: Meg Farris (WWL) Updated: 5:43 PM CDT April 27, 2021 NEW ORLEANS — If you've decided that you don't need a COVID vaccine because you were infected with the virus in the past, some new information may change your mind. Immunity from the COVID vaccine versus immunity from the COVID natural infection: which protects better? We're finally getting answers from science. Tulane Microbiology and Immunology expert Dr. James McLachlan, helps us sort out a study from the University of California Irvine. First, the mRNA technology in the two-dose vaccines gives us better, more consistent protection than the virus does, against those spike proteins, so the virus doesn't get inside our cells and multiply.