Quest Diagnostics study finds 29.5% of Lyme-seropositive patients show antibodies to other tick-borne pathogens

• Quest Diagnostics highlighted a clinical study published in JAMA Network Open on tick-borne co-exposure in suspected Lyme patients.
• Results have already been published, based on de-identified US test results collected from January 2021 through December 2025.
• Study found many patients with Lyme exposure also showed evidence of exposure to other tick-borne pathogens, raising missed-diagnosis risk.
• Findings support broader, multi-pathogen testing to guide treatment choices, since some co-infections require different management than Lyme disease.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Quest Diagnostics Incorporated published the original content used to generate this news brief via PR Newswire (Ref. ID: NY51726) on September 21, 2026, and is solely responsible for the information contained therein.