Powassan Virus Vaccine Graphical Abstract (IMAGE) Cell Press Caption This graphical abstract shows how a lipid nanoparticle-encapsulated mRNA vaccine protects mice against Powassan virus, an emerging tick-borne flavivirus, as well as inducing across-reactive antibody response against other tick-borne flaviviruses. Credit VanBlargan et al./<i>Cell Reports</i> Usage Restrictions Credit Required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.