title: [Method for estimating influenza propagation pattern from daily variations in drug sales at pharmacies].
abstract: A recently proposed method for estimating the route and speed of infectious disease propagation is applied to the data of four pharmacies located in and around Tokyo. The time lags of propagation between distant sites are calculated by the cross-correlation function of the daily variations in the amount of influenza anti-virus agents supplied at the pharmacies. A problem of which are infected earlier with influenza, adults or children, is also treated. The features of this study are the information sources of disease (pharmacies) and quantitative understanding of propagation (time lags).
authors.affiliation: fumi@nihs.go.jp
authors.forename: Kazushige
authors.initials: K
authors.lastname: Ijuin
authors.forename: Mizuho
authors.initials: M
authors.lastname: Takahashi
authors.forename: Hisako
authors.initials: H
authors.lastname: Takeuchi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Iwaki
authors.forename: Rieko
authors.initials: R
authors.lastname: Matsuda
authors.forename: Yuzuru
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Takehiko
authors.initials: T
authors.lastname: Yajima
mesh_terms: D000328:Adult; D000998:Antiviral Agents; D002648:Child; D003132:Commerce / Q000706:statistics & numerical data*; D004363:Drug Utilization / Q000706:statistics & numerical data*; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000635:transmission; D010594:Pharmacies / Q000706:statistics & numerical data*; D013997:Time Factors; D014041:Tokyo / Q000453:epidemiology
chemical_list: D000998:Antiviral Agents