
One of the most critical lessons of the COVID-19 pandemic is the importance of in-person school. Remote learning exacerbated existing educational inequities, was detrimental to educational attainment, and worsened the growing mental health crisis among children and adolescents. Transmission of SARS-CoV-2 in schools can still occur. The risk may be greater for individuals and families who have chosen not to be vaccinated or are not eligible to be vaccinated.
Improving ventilation in schools can reduce the number of COVID-19 virus particles in the air. Opening multiple windows and doors, using fans, or changing the heating, ventilation, air conditioning or air filtration systems can help. During transportation to and from school, keeping windows open a few inches also can improve air circulation.
Schools and parents should encourage students to frequently wash their hands with soap and water for at least 20 seconds or use an alcohol-based hand sanitizer that contains at least 60% alcohol. Children should cover their mouths and noses with an elbow or a tissue when coughing or sneezing. Children also should avoid touching their eyes, noses and mouths. Everyone with COVID-19 should stay home and isolate from others for at least five full days. School policies might vary on when a child who has had COVID-19 can return to school.

