Fig. 1From: A cost-effectiveness analysis of three components of a syndromic surveillance system for the early warning of epidemics in rural ChinaThe average numbers of daily reported events per surveillance unit at the three data sources in Hubei (HB) and Jiangxi (JX) provinces. Footnote: Ten outliers from pharmacies were not shown in this graph, range (67, 341); 5 in HB, 5 in JXBack to article page