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2009, Volume 6, Issue 2: 261-282. Doi: 10.3934/mbe.2009.6.261 open access
This issue Previous Article The reproduction number $R_t$ in structured and nonstructured populations Next Article The dynamics of a delay model of hepatitis B virus infection with logistic hepatocyte growth

The estimation of the effective reproductive number from disease outbreak data

  • 1.

    Center for Research in Scientific Computation, Center for Quantitative Sciences in Biomedicine, North Carolina State University, Raleigh, NC 27695

  • 2.

    Department of Mathematics and Statistics, Arizona State University, P.O. Box 871804, Tempe, AZ 85287-1804

  • 3.

    Theoretical Division, Mathematical Modeling and Analysis (T-7), Los Alamos National Laboratory, Mail Stop B284, Los Alamos, NM 87545

  • 4.

    Center for Research in Scientific Computation, Biomathematics Graduate Program, Department of Mathematics, North Carolina State University, Raleigh, NC 27695

  • 5.

    Center for Research in Scientific Computation, North Carolina State University, Raleigh, NC 27695-8212

Received:  March 31, 2008
Revised:  July 31, 2008
Published:  February 2009
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    Abstract
  • We consider a single outbreak susceptible-infected-recovered (SIR) model and corresponding estimation procedures for the effective reproductive number $\mathcal{R}(t)$. We discuss the estimation of the underlying SIR parameters with a generalized least squares (GLS) estimation technique. We do this in the context of appropriate statistical models for the measurement process. We use asymptotic statistical theories to derive the mean and variance of the limiting (Gaussian) sampling distribution and to perform post statistical analysis of the inverse problems. We illustrate the ideas and pitfalls (e.g., large condition numbers on the corresponding Fisher information matrix) with both synthetic and influenza incidence data sets.
    Mathematics Subject Classification: Primary: 62G05, 93E24, 49Q12, 37N25; Secondary: 62H12, 62N02.

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