"the advent of vaccines has shown the world how humanity has written the history of the medical community using science and technology and efficient global collaboration." in a video speech, wu shaxin, biontech ceo and co-founder, said that biontech has provided more than 1.8 billion doses of vaccines for about 150 countries and regions around the world, and it is still crucial to get the vaccine to as many people as possible. mrna technology has the advantages of great plasticity, fast r&d speed, short production cycle, suitability for booster immunization, etc. the results of a recent phase iii randomized, controlled vaccine booster trial showed that the vaccine showed more than 95% efficacy and good safety during the period when the delta variant spread most violently. this also shows that vaccination with boosters can play an important role in preventing the further spread of epidemic and helping restore normal life.