Unique epidemiological patterns of human infections with H7N9 avian influenza virus discovered by combined risk factor surveillance and epidemiology

Xu DeZhong, Bernard C.K. Choi, Bo Wang, Yang Zhang, ChangSheng Chen, JingXia Zhang, XiaoFeng Tang, HuiMin Sun, Lei Zhang

Resumen


Background: An outbreak of a novel human avian influenza (H7N9) [h-H7N9 AI] took place in China from February 2013 to April 2015, with 628 reported cases. However, there were no exact answers on epidemiological patterns and its origin. Purpose: To examine the epidemiological patterns and its origin compared with other influenza outbreaks by combined analysis of risk factor surveillance and epidemiological characteristics, and to explore new surveillance methods for tracking infectious disease outbreaks.


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