KNTV NBC Nightly News With Lester Holt October 3, 2021 00:39:00
Wear masks while indoors. >> it's very stressful. we had instances already where she's had exposures. we thought about switching to other school districts. >> reporter: now a new cdc study shows she's right to be concerned. researchers analyzed data from nearly 1,000 k-through-12 public schools in arizona's two most populated counties some had mask mandates for students and staff from the first day of classes others required masks later or not at all what did they find schools without mask mandates were 3.5 times more likely to have a covid outbreak than schools that started the term with mask...
Source: archive.org