Aaron Eichler’s Reviews > So You Want To Be A Vaccine Developer: A Kids' Guide to Vaccines, Immunology, Medical Research, and the Determined Scientists Who Protect the World from Disease > Status Update

So much information was in this book that it made my head spin. I knew that is was not easy but I did not know it took years from research to out, and the years to monitoring. Take COVID-19 vaccine, it was short time to get out, and some people say that there is proof that vaccine has unforeseen effects.