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Volume 13, Number 9—September 2007

Research

Effect of Interventions on Influenza A (H9N2) Isolation in Hong Kong’s Live Poultry Markets, 1999–2005

Eric H.Y. Lau*1, Y.H. Connie Leung*1, Li Juan Zhang*, Benjamin J. Cowling*, Sin Ping Mak†, Yi Guan*, Gabriel M. Leung*Comments to Author , and J. S. Malik Peiris*
Author affiliations: *The University of Hong Kong, Hong Kong Special Administrative Region, People’s Republic of China; †Government of the Hong Kong Special Administrative Region, People’s Republic of China;

Main Article

Figure 4

Average influenza A (H9N2) isolation rates by calendar day during the period with no rest-day and by days after a rest-day during the period with rest-days, for chickens (A) and minor poultry (B). Open circles denote the isolation rates on each calendar day averaged over the entire period, with 95% confidence intervals. Overall mean isolation rates for each period and poultry type are indicated by the dotted horizontal lines.

Figure 4. Average influenza A (H9N2) isolation rates by calendar day during the period with no rest-day and by days after a rest-day during the period with rest-days, for chickens (A) and minor poultry (B). Open circles denote the isolation rates on each calendar day averaged over the entire period, with 95% confidence intervals. Overall mean isolation rates for each period and poultry type are indicated by the dotted horizontal lines.

Main Article

1These authors contributed equally to this article.

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