About 600 Centers for Disease Control employees in offices dealing with health statistics, injury and violence prevention, congressional outreach and human resources are out of work as a result of the Trump administration's mass layoffs of agency workers late Friday, sources familiar said.

Why it matters: While the administration has since rescinded more than half of the approximately 1,300 termination notices it sent, the upheaval from the layoffs that are still taking effect could undermine efforts to protect public health. • They've also become a flashpoint in broader shutdown-related layoffs that are being challenged in court by federal worker unions.

Driving the news: The cuts have hit offices including the National Center for Injury Prevention and Control, the National Center for

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