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Table 1 The equations for calculating the indexes

From: Global dynamic spatiotemporal pattern of seasonal influenza since 2009 influenza pandemic

IndexDefinition of the indexEquation to calculate the index
PAthe proportion of influenza A virus in total influenza positive virus(total number of influenza A virus) / (total number of influenza positive virus)
RWAweekly positive rate of influenza A(weekly number of influenza A positive virus) / (total number of samples processed)
RWBweekly positive rate of influenza B(weekly number of influenza B positive virus) / (total number of samples processed)
RAthe average positive rate of influenza A(RWAweek1 + RWAweek2+… + RWAweek52) / 52
RBthe average positive rate of influenza B(RWBweek1 + RWBweek2+...+RWBweek52) / 52