1. National Health Commission (NHC) Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO WPRO Regional Reference Measles/Rubella Laboratory, Beijing, China
2. Shenyang Prefecture Center for Disease Control and Prevention, Shenyang, China
3. Liaoning Provincial Center for Disease Control and Prevention, Liaoning, China