| Summary: | Describes recent work on the use of adenovirus vectors as vaccines. These vectors have received a lot of attention because of their use by different companies in development of vaccines for COVID-19. Such vaccines elicit very strong and sustained T cell responses, including a phenomenon described as memory "inflation", but the key features which lead to these phenomena are not fully explained. The webinar will focus on some recently published data which explores the basic mechanisms which lead to induction of immune responses by adenovirus vaccines for infectious diseases and cancer. It will first look at the innate responses and how these are interpreted by innate-like T cells such as MAIT cells to enhance memory formation. Secondly it will describe a novel cell population and immunologic niche which promotes memory T cell development following vaccination and which might provide a key area to target in further development of these powerful vectors
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