Surveillance testing, for those without symptoms, was at about 0.2% positive rate, Arwady said at a news conference, appearing with new CPS CEO Pedro Martinez. They said CPS’ contact tracing and screening programs have improved, though Martinez acknowledged testing has not yet expanded to all schools, despite an earlier vow that would happen by the end of last week.
CPS shortens quarantine time as COVID-19 transmission in schools remains low, officials say
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