Effect of Earlier Vaccination and a Two-Dose Varicella Vaccine Schedule on Varicella Incidence—Beijing Municipality,2007-2018

Summary What is already known about this topic?The World Health Organization(WHO)varicella vaccines position paper states that countries where varicella is an important public health burden could consider introducing varicella vaccine(VarV)in the routine childhood immunization program(1).VarV has been available for many years in China but is not included in most routine immunization programs in China.