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First received: December 03, 2025

Clinical Trial: Acquired Tick Resistance in Naturally Exposed Participants

Study Status: COMPLETED

Recruit Status: COMPLETED

Condition: Tick Bites
Tick Resistance

Study Type: INTERVENTIONAL


Official Title: The Uninfected Ixodes Scapularis Human Tick Challenge Model - Acquired Tick Resistance in Naturally Exposed Participants

Brief Summary: Tick-borne diseases are increasing worldwide, and there are currently few effective ways to prevent them. One promising new strategy is to develop a vaccine that targets the tick itself ("anti-tick vaccine") to block the transmission of multiple pathogens. Some animals naturally develop resistance to ticks after repeated tick bites. There are indications that a similar form of acquired tick resistance (ATR) may also occur in humans who have been heavily exposed to ticks. This study investigates whether humans can…

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