Teachers may play a bigger role in COVID-19 transmission in schools than young students do, a small new study from the Centers for Disease Control and Prevention (CDC) suggests.

In the study, the researchers investigated COVID-19 transmission in eight public elementary schools in Marietta, Georgia, a suburb of Atlanta, between Dec. 1, 2020, and Jan. 22, 2021. Overall, about 2,600 students and 700 staff were attending these six schools at the time.