Figure 1. Timeliness of the first dose of HepB, the first dose of PV, the first dose of DPT, the first dose of MCV among children born between 2008 and 2009 living in Zhejiang province in eastern China. The vertical lines correspond to the age after which children were assumed to have been vaccinated late (i.e., >1 d after birth for the first dose of HepB and >1 mo after the recommended age for other vaccines).