Why did CDC stop testing rabies and pox?

CDC pauses testing for rabies and pox viruses

CDC temporarily paused testing for rabies and pox viruses for state and local public health labs. The central reason given in the coverage is staffing shortages: federal public health lab support has been reduced as personnel departures leave less capacity for specialized testing.

This matters because rabies and certain pox-related concerns require timely laboratory confirmation for appropriate exposure management and public health actions. When federal testing is unavailable, states may need to rely on alternative pathways to send specimens or use different testing resources, which can affect turnaround times and overall capacity.

The stories also frame the move in a broader context of increased risk signals for rabies in parts of the U.S., alongside the longer-running pressures on public health staffing and laboratory infrastructure.

Two related items appear in the provided pool:

• A report describing CDC temporarily halting testing for several infectious diseases, again tied to staffing strain.
• A second report focusing specifically on rabies and mpox/pox viruses being removed from the list of tests CDC conducts for state and local departments.

Together, these underline that the change is not limited to one pathogen but reflects a wider operational strain across the CDC’s lab support functions.

Key implications

• More emphasis on local lab readiness and specimen routing.
• Potential delays in confirmatory testing during spikes.
• Increased importance of clinician and public health guidance for post-exposure or suspected cases.

No specific end date or replacement testing capacity was provided in the included summaries, so it remains unclear how quickly routine testing levels will return.