The emergency department (ED) is a common site for respiratory viral surveillance, but air sampling has not been thoroughly explored in this setting. In this study, we observed a significant association between COVID-19, influenza A, and RSV detection via air sampling in an ED waiting room and clinical viral testing.

We evaluated changes in population attributable risk of "4C" antibiotics for community-associated Clostridioides difficile infection in Ontario (2017-2024). Contributions from clindamycin, cephalosporins, and fluoroquinolones declined, whereas amoxicillin-clavulanate increased and became the leading contributor by 2022, highlighting a potential emerging target for outpatient antimicrobial stewardship.

Respiratory virus surveillance varies widely between nursing homes (NHs) and is shaped by differences in staffing capacity, provider training, diagnostic resources, and facility-level protocols. CLIA-waived, point-of-care molecular testing devices were implemented as routine respiratory virus surveillance in 23 Medicare-certified U.S. NHs to evaluate feasibility.

We quantified one-year infection risk with carbapenem-resistant Acinetobacter baumannii (CRAB) among CRAB-colonized patients in post-acute care hospitals (PACHs). Among 523 carriers, 9% developed a clinical infection and 1% developed bacteremia. CRAB carriage in PACHs is not only a reservoir for transmission but also a risk to the individual carrier.

Approximately 30% of U.S. outpatient antibiotic prescriptions are unnecessary. Using 2016-2022 MarketScan data, this study assessed Missouri outpatient prescribing. Among several bacterial infections, 62.4% were inappropriate; antibiotics were prescribed for 18.3% of viral infections. Inappropriate prescribing was higher in rural areas. This method can assess regional condition-specific antibiotic stewardship targets.