With the support from the organizing committee members, we feel colossal to announce its most awaited physical event “16th World Conference on Infectious Diseases, Prevention and Control, scheduled on May 17-18, 2021 Osaka, Japan to address recent advancements and transformations in vaccine researches and development. Bearing the short name "Infectious Diseases Conf 2021", this global conference would like to sincerely appreciate the presence of outstanding participants from all over the world with an enthusiastic environment in Osaka, Japan. This conference will cover up two days scientific keynote sessions, special sessions, poster presentation, exhibition, networking and discussions.