Yang Zeng, MPH
Yang Zeng, MPH
![142nd APHA Annual Meeting and Exposition (November 15 - November 19, 2014): http://www.apha.org/events-and-meetings/annual](images/banner.jpg)
Associate Chief Physician
Beijing Center for Diseases Control and Prevention
Beijing
China
bjcdczy@gmail.com
4031.0 A Cross-Sectional Serosurvey to Estimate Pertussis Incidence and Immunization Response in Healthy Population in Beijing, China