The vaccination drive among adolescents, a critical part of the wider effort to build society-wide immunity to Covid-19, has slowed, as many parents harbor safety concerns.
Many parents rushed to get their children inoculated in May after regulators widened use of Pfizer Inc.’s Covid-19 shot to children as young as age 12.
They are struggling with how to weigh these risks against research indicating that Covid-19 itself isn’t a significant risk for children.
Giving her pause, she said, was uncertainty whether the shot is safe for children like her son with extreme allergies.