Vaccines are currently considered the most effective tool to quickly restore life to normal after the devastation of COVID-19. When it comes to vaccines, the world owes gratitude to scientist Katalin Karikó, a woman who lived with passion, overcame illness and hardship, and persevered to develop mRNA technology. This technology not only enabled the creation of the world’s most advanced COVID-19 vaccines but also opened doors to treatments for cancer, heart disease, and other infectious diseases.