[Estimation on the real number of novel influenza A (H1N1) cases, Beijing, 2009]

Autor: Xiao-li, Wang, Peng, Yang, Xiang-feng, Dou, Yi, Zhang, Wen-ting, Liu, Ying, Deng, Xing-huo, Pang, Xiong, He, Quan-yi, Wang
Rok vydání: 2010
Předmět:
Zdroj: Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi. 31(5)
ISSN: 0254-6450
Popis: To estimate the real number of novel influenza A (H1N1) infection in Beijing, 2009.A multiplier model (Impact 2009 v 1.0 software) based on Monte Carlo approach was used to estimate the real number of novel influenza A (H1N1) based on the number of influenza-like illness (ILI) cases, novel influenza A (H1N1) positive rate among ILI cases and rate on clinical visit of ILIs in secondary and tertiary hospitals.There were 1.80 million (90%CI: 1.46 - 2.30) estimated novel influenza A (H1N1) cases in 2009 in Beijing with the rate of infection as 11.0%. One reported case would represent 167 real infections. The highest age groups of infection were 0 - 4 years and 5 - 14 years, being 32.5% and 33.3%, respectively.Laboratory-confirmed infections with novel influenza A (H1N1) only represented a fraction of the total cases in a population, suggesting that it was imperative to estimate the real number of novel influenza A (H1N1) infection.
Databáze: OpenAIRE