I consider the safety of your children a high priority. I have been following the music communities discussion about precautions. I consider the study from Vienna Philharmonic a good study. The article discusses wind instruments as well. It shows that if given a 3 ft. difference between performers there is no danger of spreading infections if present. I hope this helps in your decision with your child taking part in band.
Steven Arnold
Director of Bands
Rapides Academy for Advanced Academics
Peabody Montessori Elementary
Phoenix Magnet Elementary
Rosenthal Montessori Elementary