Data follow the approval of the world's first self-amplifying (sa-mRNA) COVID-19 vaccine for adults in Japan. These results add to recently published data on ARCT-154 demonstrating superior immunogenicity to Omicron BA 4/5 compared to conventional mRNA COVID-19 vaccine booster and follow-up data demonstrating longer duration of immunity compared to traditional COVID-19 mRNA vaccine booster. KING OF PRUSSIA, Pa. and SAN DIEGO, May 20, 2024 /PRNewswire/ -- Global biotechnology leader CSL (ASX:CSL; USOTC:CSLLY ...