Erratum to: Editorial: mRNA Vaccines and Future Epidemic, Pandemic, and Endemic Zoonotic Virus Infections. Med Sci Monit. 2021;27:e932899, doi: 10.12659/MSM.932899

The Oxford-AstraZeneca vaccine, ChAdOx1 nCoV-19 (AZD1222), uses double-stranded DNA, while the Pfizer-BioNTech and Moderna vaccines include single-stranded RNA to encode the SARS-CoV-2 spike protein.