HANTAVIRUS PULMONARY SYNDROME IN NORTHWESTERN ARGENTINA: CIRCULATION OF LAGUNA NEGRA VIRUS ASSOCIATED WITH CALOMYS CALLOSUS

SILVANA LEVIS Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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JORGE GARCIA Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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NOEMÍ PINI Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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GLADYS CALDERÓN Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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JOSEFINA RAMÍREZ Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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DANIEL BRAVO Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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STEPHEN ST. JEOR Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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CARLOS RIPOLL Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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MARIANA BEGO Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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ELENA LOZANO Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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RUBÉN BARQUEZ Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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THOMAS G. KSIAZEK Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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DELIA ENRIA Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Pergamino, Argentina; Hospital San Miguel, Yuto, Jujuy, Argentina; Hospital Oscar Orías, Libertador Gral. San Martín, Jujuy, Argentina; Department of Microbiology, University of Nevada, Reno, Nevada; Dirección de Epidemiología, Jujuy, Argentina; Fundación Miguel Lillo, Tucuman, Argentina; Special Pathogens Branch, Centers for Disease Control and Prevention, Atlanta, Georgia

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The purpose of this study was to characterize the hantaviruses circulating in northwestern Argentina. Human and rodent studies were conducted in Yuto, where most cases of hantavirus pulmonary syndrome (HPS) occur. Partial virus genome sequences were obtained from the blood of 12 cases of HPS, and from the lungs of 4 Calomys callosus and 1 Akodon simulator. Phylogenetic analysis showed that three genotypes associated with HPS circulate in Yuto. Laguna Negra (LN) virus, associated with C. laucha in Paraguay, was identified for the first time in Argentina; it was recovered from human cases and from C. callosus samples. The high sequence identity between human and rodent samples implicated C. callosus as the primary rodent reservoir for LN virus in Yuto. The genetic analysis showed that the Argentinian LN virus variant differed 16.8% at the nucleotide level and 2.9% at the protein level relative to the Paraguayan LN virus. The other two hantavirus lineages identified were the previously known Bermejo and Orán viruses.

Author Notes

Reprint requests: Silvana Levis, Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui, Monteagudo 2510, 2700 Pergamino, Buenos Aires, Argentina.
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