Methods for the Measurement of Epidemic Velocity from Time-Series Data

Abstract
Cliff A (Department of Geography, University. of Cambridge, Downing Place, Cambridge, CB2 3EN, England) and Haggett P. Methods for the measurement of epidemic velocity from time-series data. International Journal of Epidemiology 1982, 11: 82–89. Two approaches to the measurement of epidemic velocity are presented. The first uses the moments of the frequency distribution of reported cases of a disease against time. The second is based upon an analysis of the growth parameter of a logistic model. The methods are illustrated by applications to some hypothetical and actual epidemic waves.

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