This fall in the Elmbrook School District outside Milwaukee, elementary school classrooms come in two flavors: mask-required and mask-recommended. Students in each group, chosen by their parents, rarely interact with one another, except outdoors at recess or in required small-group settings.

“We keep cohorts together during lunch, so if you’re in a mask-required classroom, you’re eating as a group — socially distanced,” said Superintendent Mark Hansen. “We’re keeping those bubbles pretty tight.”

Until now, elementary schoolers couldn’t get a COVID-19 vaccine. No longer. Centers for Disease Control and Prevention Director Dr. Rochelle Walensky on Tuesday endorsed the unanimous vote of a CDC vaccine advisory panel recommending Pfizer-BioNTech’s pediatric coronavirus vaccine for use in children ages 5 to 11. That means as many as 28 million children can begin receiving shots this week.

But just as parents split on masks, they’re also divided on vaccines: Nearly half say they may pass on vaccinating their children for now, mostly because they aren’t especially worried their children will get seriously sick from coronavirus — even as doctors warn the virus will become endemic and virtually unavoidable in coming years, much like the annual flu.

That could set up a tense confrontation in coming months between schools and parents as public health officials push to make the shots part of mandatory school vaccine regimens. And as with the divide over masking, social distancing, and other practices, it could also change how schools operate, as pro-vaccine parents insist on keeping their kids apart from unvaccinated classmates.

Even requiring the vaccine for enrollment might not settle the dispute: An Oct. 23 Morning Consult poll found that 46 percent of parents simply wouldn’t send their child to school if COVID vaccinations are required.

In southern California’s ABC Unified School District near Los Angeles, Superintendent Mary Sieu said many cautious families are already hesitant to send their children back to school — about 700 have remained in remote instruction programs this fall. Overall, she said, the district has lost more than 1,400 students over the past two years, forcing her to consider closing one of her schools next year.

“I just feel that a lot of people are afraid of coming back to school,” she said.

While recent research suggests that children remain at a lower risk than most adults of contracting serious illness due to the virus, outbreaks happen. In one survey, conducted in early October, nearly one in three parents said their child’s schooling had been disrupted by COVID-19.

Read the full article about child COVID-19 shots by Greg Toppo at The 74.