Which federal health agencies have been affected by the Trump administration's mass layoffs?

The Trump administration's mass layoffs have impacted several key health agencies within the Health and Human Services Department. According to Politico sources, cuts have affected staffers at the Food and Drug Administration (FDA), Centers for Medicare and Medicaid Services (CMS), Centers for Disease Control and Prevention (CDC), and National Institutes of Health (NIH). These firings were part of broader cuts affecting approximately 3,600 probationary employees across the department. The layoffs represent a significant reduction in workforce across multiple critical public health institutions.