 Exosome Platform Technology -Announced Positive Preclinical Data for Multivalent Exosome-mRNA Vaccine For COVID-19- - Novel Vaccine Induce d Long-Lasting Immunity to Multiple SARS-CoV-2 Proteins - -Development of Safe, Non-toxic Exosome Formulation Capable of Delivering Functional mRNA in vitro and in vivo- - Platform Expansion Underway Using Engineered Exosomes - 