Filtration Efficiency of Hospital Face Mask Alternatives Available for Use During the COVID-19 Pandemic | Infectious Diseases | JAMA Internal Medicine | JAMA Network

Question: How effective are the aerosol filtration efficiencies for fitted face mask alternatives used during the coronavirus disease 2019 pandemic? Findings: In this quality-improvement study of 29 fitted face mask alternatives, expired N95 respirators with intact elastic bands and masks that had been subjected to ethylene oxide and hydrogen peroxide sterilization had unchanged fitted filtration…

The Riot of Bamber Bridge (1943) •

The US Armed Forces were segregated until President Harry Truman issued Executive Order 9981 on July 26, 1948 which desegregated all the military service branches. That segregation during World War II helped create the Riot of Bamber Bridge in Great Britain in 1943. When US forces were sent to Britain that year black soldiers were…