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January 3, 2001

Garlic as a Tick Repellent

Author Affiliations

Stephen J.LurieMD, PhD, Senior EditorIndividualAuthor

JAMA. 2001;285(1):41-42. doi:10.1001/jama.285.1.39

To the Editor: Ms Stjernberg and Dr Berglund1 recently presented a randomized, double-blind, crossover trial of garlic to prevent tick bites among Swedish military conscripts. Fifty subjects were treated with garlic first and placebo second while another 50 were given placebo first and then garlic. The total number of subjects was thus 100. Of these, 66 were reported to have been bitten by ticks. The authors presented a relative risk (RR) of 0.79 with the 95% confidence interval (CI) 0.65-0.96. They did not reveal the number of bitten subjects per sequence.

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