More than 180,000 new COVID-19 cases were reported among kids last week, reaching levels of the previous winter surge of 2020-2021, according to a new report from the American Academy of Pediatrics and the Children’s Hospital Association.

More than 4.59 million children have tested positive for COVID-19 since the onset of the pandemic. Last week, children represented 22.4% of all reported cases.

Severe illness due to COVID-19 remains "uncommon" among children, the two organizations wrote in the report. In nearly two dozen states, 0.2%-1.9% of all child COVID-19 cases resulted in hospitalization.

AAP and CHA, however, warned that there is an urgent need to collect more data on the long-term consequences of the pandemic on children, "including ways the virus may harm the long-term physical health of infected children, as well as its emotional and mental health effects."

-ABC News' Arielle Mitropoulos

The Pentagon will move forward with making the Pfizer vaccine mandatory now that it has been fully approved by the FDA, Pentagon press secretary John Kirby said Monday.

Defense Secretary Lloyd Austin announced on Aug. 9 that he would seek authorization to mandate the vaccine for the military unless the FDA approved it before Sept. 15.

“Now that the Pfizer vaccine has been approved, the department is prepared to issue updated guidance, requiring all service members to be vaccinated," Kirby said at a briefing. "A timeline for vaccination completion will be provided in the coming days."

-ABC News' Luis Martinez

All of New York City’s nearly 150,000 public school employees must receive at least one vaccine dose by Sept. 27, Mayor Bill de Blasio will announce Monday. The new vaccination policy will not allow weekly testing as an option.

At least 63% of New York City's Department of Education employees are already vaccinated, Schools Chancellor Meisha Porter said.

The previous requirement allowed for weekly testing of the unvaccinated, with unpaid suspensions for workers who didn't comply.

New York City's school year starts on Sept. 13.

-ABC News' Aaron Katersky

Civil rights leader Rev. Jesse Jackson, who is in the hospital with COVID-19, is responding positively to treatment, his son told ABC Chicago station WLS.

The 79-year-old, who has Parkinson’s disease, was vaccinated for COVID-19 in January, WLS reported.

His wife, Jacqueline, 77, is also in the hospital with COVID-19 and is resting comfortably, their son, Jonathan Jackson, said.

“She is having some oxygen but is able to function and breathe on her own without a respirator,” he told WLS.

Columbia University pediatrician Dr. Edith Bracho Sanchez spoke with ABC News' Linsey Davis about the importance of getting a COVID-19 vaccine during pregnancy and while nursing.

Recent health data from the U.S. Centers for Disease Control and Prevention has shown that three out of four pregnant women in the U.S. are unvaccinated, and the numbers are lower for Black pregnant women, with nine out of 10 unvaccinated.

Sanchez, who is eight months pregnant and vaccinated, told ABC News that expecting mothers are more vulnerable to diseases and the current data shows the vaccines are safe for them.

"We now know from over close to 40,000 women that there is no increased risk of miscarriage of early delivery of your baby, which are the things that worry a lot of pregnant women," she said.

Sanchez said she did not hesitate to get her shots once she became eligible.

"I really, really hope that pregnant women out there hear this call and go ahead and get themselves this vaccine and protect themselves, their baby and their pregnancy," she said.