[Nihon kōshū eisei zasshi] Japanese journal of public health
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Nihon Koshu Eisei Zasshi · Mar 2007
[The impact of changing critical values of the early epidemic detection system for infectious disease surveillance in Japan].
It is important to examine how critical values for initiation/termination affect the trend and frequency of epidemic/pre-epidemic warnings with the early epidemic detection system in Japan. Here we looked at the number of epidemic warning/pre-warning weeks and the influence of changing the criteria values for infectious diseases surveillance. ⋯ The present examination of linkage between trends and frequencies of epidemic warnings/ pre-warnings and the critical values in the early epidemic detection system of infectious disease surveillance in Japan confirmed the expected increase with lowering of the threshold. Except for pertussis and rubella, there was no distinct issue with the critical values themselves.