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Am. J. Trop. Med. Hyg., 70(6), 2004, pp. 663-665
Copyright © 2004 by The American Society of Tropical Medicine and Hygiene

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SHORT REPORT: HIGH INCIDENCE OF SHIGELLOSIS AMONG PERUVIAN SOLDIERS DEPLOYED IN THE AMAZON RIVER BASIN

FRANCA R. JONES, JOSE L. SANCHEZ, RINA MEZA, TANIS M. BATSEL, ROSA BURGA, ENRIQUE CANAL, KARLA BLOCK, JUAN PEREZ, CHRISTIAN T. BAUTISTA, JORGE ESCOBEDO, AND STEPHEN E. WALZ
U.S. Naval Medical Research Center Detachment, Lima, Peru; U.S. Military HIV Research Program, Rockville, Maryland; U.S. Northern Command, Colorado Springs, Colorado; U.S. Naval Medical Research Center Detachment Satellite Laboratory, Iquitos, Peru; Vargas-Guerra Army Base Health Post, Iquitos, Peru; U.S. Naval Medical Research Center, Bethesda, Maryland

 

ABSTRACT

We investigated the etiology of acute diarrhea among Peruvian military recruits undergoing three months of basic combat training near the Amazonian city of Iquitos. From January through September 2002, 307 of 967 recruits were seen at the Health Post for diarrhea (attack rate [AR] = 31.8%, incidence = 1.28 95% confidence interval [CI] = 1.14–1.43] episodes/person-year). Shigella spp. were the most common bacterial pathogen recovered from recruits experiencing diarrhea episodes. These bacteria were isolated from 89 (40%) of 225 diarrheal stools examined (AR = 7.6%, incidence = 0.30 [95% CI = 0.24–0.38] episodes/person-year). Most (83 of 90; 92%) of the Shigella isolates were S. flexneri, of which 57 (69%) were serotype 2a. Seventy-six percent of Shigella isolates were resistant to sulfamethoxazole/trimethoprim and all were sensitive to ciprofloxacin. Peruvian soldiers may be an excellent population in which to test the efficacy of S. flexneri vaccines in advanced development.

Received October 29, 2003. Accepted for publication February 20, 2004.

Acknowledgments: We thank Dr. J. K. Baird for his critical review of this manuscript and assistance with its preparation. In addition, we also thank Manuela Maria Bernal for overseeing technical aspects of this project and Luis Enrique Uncan ~ an for his excellent technical assistance. Finally, we acknowledge Dr. Giovanna Pastor for translating this manuscript into Spanish for our Peruvian collaborators. Financial support: This work was supported by DoD-GEIS Work Unit Number 847705 82000 25GB B0016.

Disclaimer: The opinions and assertions contained herein are the private ones of the authors and are not to be construed as official or reflecting the views of the Navy Department or the naval service at large.

Authors’ addresses: Franca R. Jones, Rina Meza, Rosa Burga, Enrique Canal, Karla Block, and Juan Perez, U.S. Naval Medical Research Center Detachment, American Embassy, Unit 3800, APO AA 34031, Telephone: 51-1-561-2733, Fax: 51-1-561-3042, E-mail: jones{at}nmrcd.med.navy.mil. Jose L. Sanchez and Christian T. Bautista, Department of Epidemiology and Threat Assessment, U.S. Military HIV Research Program and Henry M. Jackson Foundation for the Advancement of Military Medicine, Taft Court, Suite 250, Rockville, MD 20850, Telephone: 301-251-5077, Fax: 301-294-1898, E-mail: jsanchez{at}hivresearch.org. Tanis M. Batsel, HQ U.S. Northern Command/SG, 250 South Peterson Boulevard, Suite 116, Peterson Air Force Base, CO 80914-3100, Fax: 719-554-7227, E-mail: Tanis.Batsel{at}northcom.mil. Jorge Escobedo, Vargas Guerra, Compañía de Sanidad 115, Iquitos, Loreto, Peru. Steven E. Walz, U.S. Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD 20910-7500, Telephone: 301-319-7645, Fax: 301-319-7410, E-mail: walzs{at}nmrc.navy.mil.






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Copyright © 2004 by the American Society of Tropical Medicine and Hygiene.