Implementation of Test-to-Stay programming to minimize learning loss in a pre-K-8 school district.

Objectives: Determine if a school-based Test-to-Stay (TTS) program designed to minimize learning loss reduced the incidence of COVID-19 in a US primary school district.

Study Design: Observational, simple summary analysis of attendance and effectiveness of a TTS program implemented in a California school district.

Methods: Retrospective analysis of nested medical and demographic data.

High Prevalence of Multidrug-Resistant Organism Colonization in 28 Nursing Homes: An "Iceberg Effect".

Objective: Determine the prevalence of methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant Enterococcus spp. (VRE), extended-spectrum beta-lactamase producing organisms (ESBLs), and carbapenem-resistant Enterobacteriaceae (CRE) among residents and in the environment of nursing homes (NHs).

Design: Point prevalence sampling of residents and environmental sampling of high-touch objects in resident rooms and common areas.