Cdc director says schools with large covid outbreaks generally aren't following federal mask and vaccine guidance

Children participate in an activity in class at the Xavier Academy on August 23, 2021 in Houston, Texas. In-person classroom sessions are resuming and schools around Houston are requiring

mask mandates, keeping in accordance with CDC guidelines. Brandon Bell | Getty Images CDC Director Dr. Rochelle Walensky said Friday that recently reopened schools that are already

struggling with large-scale Covid outbreaks generally aren't following federal guidelines that recommend students and staff wear masks indoors and get vaccinated when eligible.

Pediatric Covid hospitalizations in the U.S. reached their highest reported levels this week, and Walensky said school closures will occur in districts with insufficient safeguards to block

community spread of the virus. Speaking at a White House Covid-19 briefing, Walensky called on schools to adopt a multilayered approach that also includes social distancing, enhanced

ventilation and Covid testing to prevent outbreaks. "I want to strongly appeal to those districts who have not implemented prevention strategies and encourage them to do the right thing

to protect the children under their care," Walensky said. "In our outbreak investigations, large-scale quarantines or large number of cases are generally occurring in schools

because schools are not following our guidance." MORE CNBC HEALTH COVERAGE * From ‘Cockroach Award’ to the Big Board: Hinge Health’s unlikely path to IPO * How UnitedHealthcare became

the face of America’s health insurance frustrations * When 20,000 devices were paralyzed by a bad update, a Georgia health system turned to Apple Walensky, who didn't call out any

school districts by name, said the Centers for Disease Control and Prevention studied an outbreak in Northern California where an unvaccinated, symptomatic teacher read to a class without a

mask, spreading the virus to students, staff and their families. And in Florida, Hillsborough County Public Schools reported this month that nearly 10,400 students and almost 340 staff

members were in isolation or quarantine after close contact with a positive Covid case. The CDC also studied Covid measures in Los Angeles County, where prevention strategies kept the rate

of cases in schools lower than the rate of cases in the county. Case rates among children and adolescents in schools with Covid mitigation protocols were more than three times lower last

winter than community case rates, Walensky said. Walensky added that the CDC has seen increased pediatric Covid cases and hospitalizations in recent weeks, driven by the increased

transmissibility of the delta variant. "Schools should implement as many of these prevention layers as possible simultaneously, and this serves to protect our children, even if there

are inevitable breaches in any single layer," Walensky said.