CDC updated their guidelines for COVID-19 testing in nursing homes, clarifying testing recommendations for residents and staff, testing procedures in response to an outbreak, and new recommendations for testing for other pathogens like influenza.
They also updated their web page with information on how COVID-19 spreads, providing more detail on person-to-person transmission through respiratory droplets. Respiratory droplet exposure has been established as the dominant mode of transmission of the virus- reinforcing the importance of face coverings as the single highest return on investment intervention that we have.