ARIZONA RESIDENT DIES OF PNEUMONIC PLAGUE, THE FIRST DEADLY CASE IN AREA IN NEARLY 20 YEARS; This bacterium is so lethal, even at small doses, that it has been classified as a "Tier 1 select agent" by the CDC and is considered a "potential bioterror weapon,"; "IN THE STUDY, WE SHOW THAT OUR MRNA VACCINE PROVIDES 100% PROTECTION AGAINST PNEUMONIC PLAGUE (A SEVERE LUNG INFECTION), Professor Dan Peer, director of the Laboratory of Precision Nanomedicine at Tel Aviv University