Money Pfizer’s Kathrin Jansen leads the charge on vaccines September 19, 2019Swapna Venugopal Ramaswamy, Rockland/Westchester Journal NewsComments Off on Pfizer’s Kathrin Jansen leads the charge on vaccines Jansen, a microbiologist who played a vital part in the development of two blockbuster vaccines, on gender bias and the anti-vaccination movement.