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Volume 10, Number 7—July 2004


Model Parameters and Outbreak Control for SARS

Gerardo Chowell*†Comments to Author , Carlos Castillo-Chavez‡1, Paul W. Fenimore*, Christopher M. Kribs-Zaleta§, Leon Arriola*, and James M. Hyman*
Author affiliations: *Los Alamos National Laboratory, Los Alamos, New Mexico, USA; †Cornell University, Ithaca, New York, USA; ‡Arizona State University, Tempe, Arizona, USA; §University of Texas at Arlington, Arlington, Texas, USA

Main Article

Table A1

Sensitivity indices for Toronto with l = 0.1

Positive sensitivity indices Negative sensitivity indices
Ψβ = 1 –1% Ψα = –0.4758 2.10%
Ψr = 0.6063 –1.65% Ψδ = –0.1707 5.86%
Ψl = 0.2001 –4.99% Ψγ2 = –0.1208 8.28%
Ψγ = 0.1172 –8.53% Ψk = –0.1172 8.53%
Ψp = 0.0906 –11.04% Ψγ1 = –0.1156 8.65%

Main Article

1At the time this work was carried out, Dr. Castillo-Chavez was on sabbatical at Los Alamos National Laboratory and faculty of Cornell University.

2Recall that l = 0 corresponds to complete isolation, whereas l = 1 means no effective isolation occurs. Hence, a decrease in l means an increase in the effective isolation of the infected persons.