Kay Hagan Tick Reauthorization Act

S. 2398, the Kay Hagan Tick Reauthorization Act, would extend federal funding authorization for two existing tick- and vector-borne disease programs under the Public Health Service Act. It reauthorizes the National Strategy and Regional Centers of Excellence in Vector-Borne Diseases program and the Enhanced Support to Assist Health Departments in Addressing Vector-Borne Diseases program, both previously authorized through 2025, extending them through 2026–2030. The bill also makes administrative changes to how the Centers of Excellence program is coordinated, removing a reference to the now-expired Tick-Borne Disease Working Group and adjusting the language describing coordination among federal agencies.

The bill primarily affects public health agencies, research centers, and state and local health departments that receive federal support for tracking and responding to tick-borne and other vector-borne illnesses, since it keeps their funding authorization active rather than letting it lapse.

Sponsored by Sen. Susan Collins (R-ME) and introduced July 23, 2025, the bill passed the Senate by voice vote on August 6, 2026, with an amendment. It next goes to the House of Representatives for consideration; it would need to pass the House and be signed by the President before becoming law.

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