In a historic announcement on October 2, the Nobel Assembly at the Karolinska Institute unveiled the laureates for the “2023 Nobel Prize in Physiology or Medicine.” The honour was bestowed upon American scientists Katalin Karikó and Drew Weissman for their pioneering work in developing modified nucleotide bases, a breakthrough that paved the way for highly effective mRNA vaccines. Nobel Prize 2023 Awarded to Pioneers of COVID-19 Vaccines