Richard Feynman is one of the most known and loved physicists to ever walk the face of the planet. He is known for his research in path integral formulation of quantum mechanics, the theory of quantum electrodynamics, and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics. But perhaps for the most of the world, he is known most for his amazing quality to teach very complicated matters in a simple, attractive way. His charismatic persona inspider many, many people, and personally, I highly recommend this, and any other Feynman books or videos.
According to the research, the vaccine was “well-tolerated without any overt toxicity”.