학술논문

Incorporating testing volume into estimation of effective reproduction number dynamics
Document Type
Working Paper
Source
Subject
Statistics - Methodology
Quantitative Biology - Populations and Evolution
Language
Abstract
Branching process inspired models are widely used to estimate the effective reproduction number -- a useful summary statistic describing an infectious disease outbreak -- using counts of new cases. Case data is a real-time indicator of changes in the reproduction number, but is challenging to work with because cases fluctuate due to factors unrelated to the number of new infections. We develop a new model that incorporates the number of diagnostic tests as a surveillance model covariate. Using simulated data and data from the SARS-CoV-2 pandemic in California, we demonstrate that incorporating tests leads to improved performance over the state-of-the-art.
Comment: 26 pages of main text, plus 17 pages of appendix