ATLANTA (WJW) — The Centers for Disease Control and Prevention (CDC) continues to update its COVID-19 guidance for K-12 schools, including how to safely have extracurricular activities.

The health agency says schools should consider testing for sports, choir, band and other activities that involve shouting or vigorous exercise, especially 24 hours before a competition or event.

The CDC is also advising school districts to cancel high-risk activities or hold them virtually in communities with high transmission unless everyone is fully vaccinated.

COVID-19 is more likely to spread during sports requiring close contact, such as wrestling, hockey and football, according to the CDC. The agency also notes band is considered high risk because of increased exhalation.

The CDC already recommends vaccination, universal indoor masking, and maintaining at least 3 feet of physical distance in the classroom to help reduce the transmission of the coronavirus.

More information about the agency’s pandemic guidance for K-12 school districts is available online.