Objective:Baicalein, Luteolin and Ursolic acid are effective in TCM to anti-virus.Previous studies have shown that these compounds have effective antiviral activity. Thisexperiment is designed to screening the three kinds of effective component to find the mosteffective antiviral constituents in Human cytomegalovirus (HCMV). Methods: In this testHuman embryonic lung cells in the vitro as the research object, four methyl azo thiazolesalt colorimetric method (MTT) and cell pathological changes method (CPE)are...