This Cross-sectional study was conducted to recruit neonates less than 14 days old delivered in Maternal and Child Health Hospitals (MCHHs) of Xinmi City, Jiaxian County, Zhongmu County and Huli District Xiamen City, in China, from June 2015 to June 2016. The aim of this study is to enroll ~1800 neonates, and collect their saliva and urine samples which will be tested the CMV DNA by using real-time PCR.