How readily does COVID-19 spread on school buses?

Although in-school transmission of COVID-19 among K-12 students is low when safeguards are in place, the risk of acquiring COVID-19 during school bus transportation is unclear. A study published in the Journal of School Health reports on the bus transport experience of an independent school in Virginia.

source https://medicalxpress.com/news/2021-07-readily-covid-school-buses.html