Shots in little arms: Covid-19 vaccine testing turns to kids in US

The 9-year-old twins didn’t flinch as each received test doses of Pfizer’s Covid-19 vaccine -- and then a sparkly bandage to cover the spot.

The 9-year-old twins didn’t flinch as each received test doses of Pfizer’s Covid-19 vaccine -- and then a sparkly bandage to cover the spot. “Sparkles make everything better,” declared Marisol Gerardo as she hopped off an exam table at Duke University to make way for her sister Alejandra. Researchers in the U.S. and abroad are beginning to test younger and younger kids to make sure Covid-19 vaccines are safe and work for each age. The first shots are going to adults who are most at risk from the coronavirus, but ending the pandemic will require vaccinating children too.