EHS
EHS

Pediatric COVID-19 cases spike in areas without school mask mandates



U.S. counties without school mask requirements saw pediatric COVID-19 cases increase nearly twice as fast in the 2 weeks after schools reopened than counties with mask mandates, according to an MMWR report published Friday.
In another new MMWR report, schools in two of the Arizona’s most populous counties were found to be 3.5 times more likely to have COVID-19 outbreaks if they did not have a mask requirement at the start of school compared with similar schools that required masks.
For 999 of the eligible 1,041 K-12 public noncharter schools in Maricopa and Pima counties included in the

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