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Case Reports
. 2007 Jul;13(7):1061-4.
doi: 10.3201/eid1307.061557.

Human Influenza A (H5N1) Cases, Urban Areas of People's Republic of China, 2005-2006

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Case Reports

Human Influenza A (H5N1) Cases, Urban Areas of People's Republic of China, 2005-2006

Hongjie Yu et al. Emerg Infect Dis. .
Free PMC article


We investigated potential sources of infection for 6 confirmed influenza A (H5N1) patients who resided in urban areas of People's Republic of China. None had known exposure to sick poultry or poultry that died from illness, but all had visited wet poultry markets before illness.


Figure 1
Figure 1
Map showing distribution of 6 human influenza (H5N1) cases from urban areas of People’s Republic of China, compared with 14 cases from rural areas. The 6 urban cases were distributed sporadically in 6 large cities of 5 provinces, and none was associated with confirmed H5N1 subtype poultry outbreaks or sick and dead poultry.
Figure 2
Figure 2
Number of human influenza (H5N1) cases in urban and rural areas, by month of onset, People’s Republic of China, October 2005–September 2006.

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