More safeguards are needed to monitor the use of J&J’s COVID-19 vaccine | Opinion Today 9:48 AM Two medical experts say they still advocate strongly for the safe use of the Johnson & Johnson vaccine, but they now believe that additional safeguards should be used to monitor its safe use. AP photo. AP Facebook Share By Scott Ratzan and Kenneth Rabin For the past two years, we have both been involved in extensive U.S. and international social research programs on vaccine confidence generally and COVID-19 vaccine hesitancy in particular. Our goal is to convince people worldwide to accept COVID-19 vaccination as our best hope to control the pandemic, restore economic growth and rebuild social connectedness.