ALT A figure that shows “Weekly New Hospital-Onset Cases of SARS-CoV-2, Influenza, and RSV Infection Per Admission for Community-Onset Infection at 10 US Hospitals.” “The adjusted Poisson Model in the study of testing and masking policies of Mass General Brigham examined data in 4 time periods: pre-Omicron variant with universal testing and masking, Omicron with universal testing and masking, Omicron without universal testing and masking, and Omicron after restarting masking for healthcare professionals only.”   “Hospital-onset infections of SARS-CoV-2, influenza, and RSV were identified as the first positive polymerase chain reaction (PCR) test more than 4 days after admission. Community-onset infections were considered the first positive test within 4 days.”   Source: Testing and Masking Policies and Hospital-Onset Respiratory Viral Infections https://bit.ly/MGB_MaskTestStudy

ALT “Want to Limit Respiratory Virus Infections? Mask and Test in Hospitals — Healthcare workers masking makes a difference, study found” by Rachel Robertson, Medpage Today. https://bit.ly/3OvhNhk   Image shows a healthcare worker wearing a medical mask, washing their hands.   Headline: The study shows that “Restarting the masking of health care workers was associated with a significant (33%) decrease in hospital-onset respiratory viral infections (JAMA Network Open)   Source: Testing and Masking Policies and Hospital-Onset Respiratory Viral Infections By Dr. Theodore Pak, Dr. Tom Chen and Dr. Sanjat Kanjilal. https://bit.ly/MGB_MaskTestStudy