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A study was done to evaluate the personal protection afforded by uniforms treated with permethrin (0.125 mg/cm2) against natural infestations of chigger mites, Trombicula spp. The study utilized human test subjects taking part in a military field training exercise. At the end of the 3-day period, there was a 74.2% increase in protection provided by the treated uniforms compared to an untreated uniform and the use of repellent. The increased protection amounted to ca 60 fewer mite attachments per treated subject. The treated uniforms were also found to be nonirritating and nonodorous.
Accepted for publication December 3, 1981.
Research reported here was conducted as part of an ongoing cooperative program between the U.S. Navy and Department of Agriculture and was supported in part with contract funds from the Medical Research and Development Command, Office of the Surgeon General, U.S. Army.
Address reprint requests to: C. E. Schreck, Insects Affecting Man and Animals Research Laboratory, ARS, USDA, P.O. Box 14565, Gainesville, Florida 32604.
* This paper reports the results of research only. Mention of a pesticide, commercial or proprietary product does not constitute an endorsement or recommendation by the United States Navy, Marine Corps or Department of Agriculture. Opinions or assertions contained herein are those of the writers and are not to be construed as official or reflecting the view of the United States Navy, Marine Corps or Department of Agriculture.
Medical Entomologist, LCDR, MSC, USN assigned to 2d Med. Bn., 2d FSSG, FMFLANT, Camp Lejeune, North Carolina. (Present address: NEPMU-7, Box 41, FPO New York 09521.)
Research Entomologist, Insects Affecting Man and Animals Research Laboratory, ARS, USDA, P.O. Box 14565, Gainesville, Florida 32604.
Environmental Health Officer, ENS, MSC, USN assigned to 2d Med. Bn., 2d FSSG, FMFLANT, Camp Lejeune, North Carolina 28542.
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