surveillance (version 1.12.1)

campyDE: Cases of Campylobacteriosis and Absolute Humidity in Germany 2002-2011

Description

Weekly number of reported campylobacteriosis cases in Germany 2002-2011 together with the corresponding absolute humidity (in g/m^3) that week. The absolute humidity was computed according to the procedure by Dengler (1997) using the means of representative weather station data from the German Climate service.

Usage

data(campyDE)

source

The data on campylobacteriosis cases are queried from the Survstat@RKI database of the German Robert Koch Institute (http://www3.rki.de/SurvStat/). Data for the computation of absolute humidity were obtained from the German Climate Service (Deutscher Wetterdienst), Climate data of Germany, available at http://www.dwd.de. A complete data description and an analysis of the data can be found in: Bayesian model algorithm for monitoring reported cases of campylobacteriosis in Germany (2013), Manitz J and H�hle M, Biometrical Journal, 55(4), pp. 509 526.

Examples

#Load the data
  data("campyDE")

  #O104 period is W21-W30 in 2011
  stopifnot(all(campyDE$O104period == (
      (campyDE$date >= as.Date("2011-05-23")) &
      (campyDE$date < as.Date("2011-07-31"))
  )))

  #Make an sts object from the data.frame
  cam.sts <-  new("sts",epoch=as.numeric(campyDE$date),observed=campyDE$case,
                   state=campyDE$state, epochAsDate=TRUE)

  #Plot the result
  plot(cam.sts)