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Mitigation Measures in Delaware Lead to Decline in New COVID-19 Cases, Hospitalization, and Deaths In this Morbidity and Mortality Weekly Report, lab and case investigation studies investigated mitigation measures such as stay-at-home orders, public mask mandates, contact tracing and investigation, Read More
State policies mandating public or community use of face masks or covers in mitigating novel coronavirus disease (COVID-19) spread are hotly contested. This study uses a natural experiment to examine whether statewide mandates to wear face masks in public affect Read More
This report describes nonpharmaceutical interventions (NPIs) that limited COVID-19 incidence among basic trainees in Texas. Substantial COVID-19 transmission has been documented in some congregate living settings. This report examines the first 7 weeks (March 1–April 18) of implementation of NPIs Read More
It is urgent to understand the future of severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) transmission. This study used estimates of seasonality, immunity, and cross-immunity for human coronavirus OC43 (HCoV-OC43) and HCoV-HKU1 using time-series data from the United States to inform Read More
This study uses state public health department data to describe trends in COVID-19 hospitalizations before and after state executive stay-at-home orders issued in March and April 2020 in Colorado, Minnesota, Ohio, and Virginia, and compares projected vs observed admissions to Read More
Findings from this small study suggested that a qualitative fit test alone is unable to fully assess mask integrity and that at the doses required for sterilization, gamma radiation degrades the filtration efficiency of N95 masks. A set of 3M 8210, Read More
Large gatherings pose a risk for SARS-CoV-2 transmission. High transmission rates have been reported from hospitals, long-term care facilities, family gatherings, and a choir practice. This public health investigation focused on the transmission of SARS-CoV-2 among persons who attended church Read More
This study examined the feasibility of screening all patients with respiratory symptoms for COVID-19. Between Feb 5-March 18, 2020, researchers from Singapore General Hospital (SGH) introduced a “respiratory surveillance ward” (RSW) to segregate all patients with respiratory symptoms in designated Read More
This piece discusses why many institutions have enacted a universal masking policy in healthcare settings and important considerations and options for facilities considering such a policy. Due to concerns about atypical presentations and pre-symptomatic transmission of SARS-CoV-2, many health care Read More
This CDC report discusses various factors that contributed to the accelerated spread of COVID-19 in the US during February–March 2020. These factors include continued travel-associated importations, large gatherings, introductions into high-risk workplaces and densely populated areas, and cryptic transmission resulting Read More

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