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Am. J. Trop. Med. Hyg., 70(3), 2004, pp. 302-304
Copyright © 2004 by The American Society of Tropical Medicine and Hygiene

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PREVALENCE OF ANTIBODIES TO HANTAVIRUS AMONG FAMILY AND HEALTH CARE WORKER CONTACTS OF PERSONS WITH HANTAVIRUS CARDIOPULMONARY SYNDROME: LACK OF EVIDENCE FOR NOSOCOMIAL TRANSMISSION OF ANDES VIRUS TO HEALTH CARE WORKERS IN CHILE

CONSTANZA CASTILLO, ELIECER VILLAGRA, LIGIA SANHUEZA, MARCELA FERRES, JOVITA MARDONES, AND GREGORY J. MERTZ
Department of Internal Medicine, La Frontera University, Temuco, Chile; Department of Virology, Institute of Public Health, Santiago, Chile; Epidemiology Office, Public Health Service Temuco, Chile; Department of Pediatrics, Catholic University, Santiago, Chile; Department of Internal Medicine, University of New Mexico, Albuquerque, New Mexico

Nosocomial transmission of Andes virus has been documented in Argentina, but has not yet been proven in Chile. We studied 215 contacts (106 family member contacts and 109 health care worker contacts) of 20 index cases of hantavirus cardiopulmonary syndrome (HCPS) in Chile. The seroprevalence of IgG antibodies against Andes virus was 1.9% (95% confidence interval [CI] = 0.34–6.3%) among the family members and 0.0% (95% CI = 0–3.2%) among the health care workers. Our data suggest that there is no evidence for nosocomial transmission of Andes virus in region IX of Chile.

Received September 29, 2003. Accepted for publication November 6, 2003.

Acknowledgments: We thank Dr. Heidi Weiss (Baylor College of Medicine, Houston, TX) for statistical consultation and reviewing the manuscript.

Financial support: This work was supported by the Universidad de la Frontera (Temuco, Chile) registration No. EX 00/120, and U.S. Public Health Service grants AI-45452 and TW01133.

Authors’ addresses: Constanza Castillo, Facultad de Medicina, Universidad de la Frontera, Manuel Montt 112, Temuco, Chile, Telephone: 56-45-325755, Fax: 56-45-230461, E-mail: eureka{at}telsur.cl. Eliecer Villagra, Instituto de Salud Pública de Chile, Marathon 1000, Santiago, Chile, Telephone: 56-2-3507583, Fax: 56-2-3507413, E-mail: virologi{at}ispch.cl. Ligia Sanhueza, Servicio de Salud Araucanía Sur, Andrés Bello 636, Temuco, Chile, Telephone: 56-45-407110, Fax: 56-45-407115, E-mail: lsanhueza{at}araucaniasur.cl. Marcela Ferres, Quito 41 A, Santiago, Chile, Telephone and Fax: 56-2-6649589, E-mail: mferres{at}med.puc.cl. Jovita Mardones, Rancagua 1620, Temuco, Chile, Telephone: 56-45-220156, Fax: 56-45-230461, E-mail: jovitmar{at}hotmail.com. Gregory J. Mertz, Department of Internal Medicine, University of New Mexico School of Medicine, 915 Camino de Salud, BRF-323, Albuquerque, NM 87131-0001, Telephone: 505-272-5666, E-mail: GMertz{at}salud.unm.edu.






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