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Emerg Infect Dis. 2009 Oct;15(10):1603-8. doi: 10.3201/eid1510.081040.

Review of an influenza surveillance system, Beijing, People's Republic of China.

Author information

1
Beijing Center for Disease Prevention and Control, Beijing, People's Republic of China.

Abstract

In 2007, a surveillance system for influenza-like illness (ILI) and virologic data was established in Beijing, China. The system tracked ILI and laboratory-confirmed influenza in 153 general hospitals from September 1, 2007, through April 30, 2008. To analyze the ILI surveillance data (weekly ILI rates and counts) and the effectiveness of the system, we used the US Centers for Disease Control and Prevention Early Aberration Reporting System. The data indicated that the highest rate of influenza isolation and the highest ILI count occurred in the first week of 2008. The system enabled us to detect the onset and peak of an epidemic.

PMID:
19861053
PMCID:
PMC2866378
DOI:
10.3201/eid1510.081040
[Indexed for MEDLINE]
Free PMC Article

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