Key Points on the Spread of SARS-CoV-2 Among Children and Adolescents for the 2020–2021 School Year

• A higher proportion of asymptomatic cases among those under 18 than among those 18 and older

• A 7-point increase in the proportion of people under 18 among those tested in the first half of 2021

• Higher incidence rates among 15- to 17-year-olds, comparable to those of people aged 18 and older starting in early 2021

• Higher testing and incidence rates during the third wave of the epidemic in April 2021 compared to October 2020, particularly among those under 15