[Investigation of measles, rubella and varicella IgG antibody levels among migrant and native pupils in Changning District of Shanghai].

Objective: To define the measles, rubella and varicella immunoglobulin G (IgG) anti-body levels among migrant and native pupils so as to advise effective measures for measles control and prevention.

Methods: 241 pupils at four or five grade were recruited from 3 primary schools in Changning District. Measles, rubella and varicella IgG antibody levels were tested.