NEW YORK — Starting next week, the city will be providing vaccinations for children ages 5 through 11 at every public school that serves students of that age, Mayor Bill de Blasio announced Wednesday morning. 

City-run vaccine sites will also be ready starting Thursday to provide the COVID-19 vaccine to children, pending the release of detailed guidance from the Centers for Disease Control and Prevention in administering the immunizations to children. City health leaders expect that guidance to be released today.

“Assuming we get that approval today, they’ll be up tomorrow,” he said.  

The expanding vaccination effort comes a day after the CDC recommended a child-size dose of the Pfizer-BionTech vaccine for that age group. 

The school effort will reach 1,070 schools over five days starting Monday, Nov. 8. A parent or guardian must either accompany children for their shot at the school or give verbal consent over the phone. 

“We want to make it easy for parents who just want to go to their local school building,” de Blasio said.

The vaccines are highly effective in children, according to city health commissioner Dr. Dave Chokshi, and side effects seen in children from the doses — such as arm pain, headaches and body aches — have appeared to be more mild than side effects in older age groups.

Chokshi said that the city is working with 1,500 pediatricians and family doctors to provide doses to their offices as well. 

“I know there are a number of parents and pediatricians who are breathing a huge sigh of relief,” Chokshi said. 

At city-run health sites, such as Health and Hospitals clinics and other vaccination clinics, parents will be able to book appointments for children, though walk-ins are welcome as well, said Dr. Mitch Katz, head of the city’s hospital system.