For two years, you beat the odds. You masked, kept your distance, got your shots. Now, despite those efforts, you, your child, or someone else in your home has come down with covid-19. And the last thing you want is for the virus to spread to everyone in the family or...
Many U.S. schools were in dire need of upgrades — burdened by leaking pipes, mold, and antiquated heating systems — long before the covid-19 pandemic drew attention to the importance of indoor ventilation in reducing the spread of infectious disease. The average U.S....
