Masking is good. Ventilation is better. Screening is better still. Until a comprehensive screening program can be put into place or all ventilation systems can

Masking is good. Ventilation is better. Screening is better still. Until a comprehensive screening program can be put into place or all ventilation systems can be updated, we should continue to require masking indoors until the risk to those who could get infected is lowered by vaccination or until a good treatment is available.