Epidemiological investigation of an outbreak of pandemic influenza A (H1N1) 2009 in a boarding school: Serological analysis of 1570 cases Tiegang Li, Yang Liu, Biao Di, Ming Wang, Jichuan Shen, Ying Zhang, Xi Chen, Jun Yuan, Jibin Wu, Kuibiao Li, Enjie Lu, Yejian Wu, Aihua Hao, Xiongfei Chen, Yulin Wang, Jianhua Liu, Sam Pickerill, Bojian Zheng Journal of Clinical Virology Volume 50, Issue 3, Pages 235-239 (March 2011) DOI: 10.1016/j.jcv.2010.11.012 Copyright © 2010 Terms and Conditions
Fig. 1 Symptomatic cases and incidence rate of the influenza A (H1N1) 2009 outbreak in a boarding school (n=349). X axis marks the onset date of cases and the total number of students enrolled for each 3-day time period. Journal of Clinical Virology 2011 50, 235-239DOI: (10.1016/j.jcv.2010.11.012) Copyright © 2010 Terms and Conditions