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Volume 9, Number 9—September 2003

Research

Hantavirus Infection in Humans and Rodents, Northwestern Argentina

Noemi Pini*Comments to Author , Silvana Levis*, Gladys Calderón*, Josefina Ramirez†, Daniel Bravo‡, Elena Lozano†, Carlos Ripoll§, Stephen St. Jeor¶, Thomas G. Ksiazek#, Ruben M. Barquez**††, and Delia Enria*
Author affiliations: *Instituto Nacional de Enfermedades Virales Humanas “Dr. Julio I. Maiztegui,” Pergamino, Argentina; †Hospital San Miguel, Yuto, Jujuy, Argentina; ‡Hospital Oscar Orias, Libertador General San Martín, Jujuy, Argentina; §Dirección de Epidemiología, Jujuy, Argentina; ¶University of Nevada, Reno, Nevada, USA; #Centers for Disease Control and Prevention, Atlanta, Georgia, USA; **Universidad Nacional de Tucumán, Tucumán, Argentina; ††Consejo Nacional de Investigaciones Científicas y Técnicas, Tucumán, Argentina

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Table 4

Hantavirus antibody prevalence by clinical and epidemiologic characteristics

  Yes
No
Chi square,a p value Without data
Positive/tested (%) Positive/tested (%) Positive/tested (%)
Previous clinical HPSb symptoms
3/29 (10.3)
19/307 (6.2)
0.75, 0.38
0/5 (0)
Contact with a confirmed HPS case-patient
6c/98 (6.1)
16/242 (6.6)
0.03, 0.86
0/1 (0)
Recreational activities (fishing, hunting)
6/77 (7.8)
16/260 (6.2)
0.26, 0.60
0/4 (0)
Sighting of rodents
17/270 (6.3)
5/71 (7.0)
0.05, 0.81

Trips outside the area 15/233 (6.4) 7/105 (6.7) 0.01, 0.93 0/3 (0)

aChi-square test for comparison of two proportions in two independent samples, p>0.05 no significance. EpiInfo version 2000 (Centers for Disease Control, Atlanta, GA).
bHPS, hantavirus pulmonary syndrome.
cAll positive contacts were relatives of a confirmed HPS patient.

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