介水传染病发病率虽然有下降趋势，但病毒性肝炎上升迅猛。

Although incidence rates of water-borne diseases had the drop tendency, virus hepatitis rised rapidly.

youdao

介水传染病发病率虽然有下降趋势，但病毒性肝炎上升迅猛。

Although incidence rates of water-borne diseases had the drop tendency, virus hepatitis rised rapidly.

youdao