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

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...