Figure 4
From: Prevalence of hemorrhagic fever with renal syndrome in Qingdao City, China, 2010–2014

Comparison of quarterly HFRS incidence and quarterly rodent capture rate in Huangdao District, 2010–2014.
The scale on the left indicated quarterly HFRS incidence of 100,000 population and the scale on the right indicated the quarterly capture rate of field rodents and residential rodents.