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 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.

“Kids should get the shot,” Marisol told The Associated Press this week after the sisters participated in Pfizer’s new study of children under age 12. “So that everything might be a bit more normal.” She's looking forward to when she can have sleepovers with friends again.

So far in the U.S., teen testing is furthest along: Pfizer and Moderna expect to release results soon showing how two doses of their vaccines performed in the 12 and older crowd. Pfizer is currently authorized for use starting at age 16; Moderna is for people 18 and older.

But younger children may need different doses than teens and adults. Moderna recently began a study similar to Pfizer's new trial, as both companies hunt the right dosage of each shot for each age group as they work toward eventually vaccinating babies as young as 6 months.

Last month in Britain, AstraZeneca began a study of its vaccine among 6- to 17-year-olds. Johnson & Johnson is planning its own pediatric studies. And in China, Sinovac recently announced it has submitted preliminary data to Chinese regulators showing its vaccine is safe in children as young as 3.

Getting this data, for all the vaccines being rolled out, is critical...