How fetal-derived cells play a critical part in vaccine development Posted on March 9, 2021 by Chicago 1 Chicago Chicago News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: The COVID-9 vaccines are working so well, fully vaccinated people can ditch their masks and hug their loved ones. 1 Chicago Chicago News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: