Some schools hit hard by virus make few changes for new year

COVID-19 infections are again on the rise and filling families with dread as a new school year approaches. They fear the return of the pandemic scourge of outbreaks that sideline large numbers of teachers, close school buildings and force students back into remote learning. Some school systems around the country have moved to bolster staffing to minimize disruptions. But many are hoping for the best without doing much else differently compared with last year. Even some of the districts that had the most disruptions to in-person schooling amid the spread of the highly contagious omicron variant point to few specific changes in their prevention efforts.