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Volume 13, Number 7—July 2007

Dispatch

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

Hongjie Yu*1, Zijian Feng*1, Xianfeng Zhang†1, Nijuan Xiang*, Yang Huai*‡, Lei Zhou*, Zhongjie Li*, Cuiling Xu§, Huiming Luo¶, Jianfeng He¶, Xuhua Guan†, Zhengan Yuan#, Yanting Li#, Longshan Xu**, Rongtao Hong**, Xuecheng Liu††, Xingyu Zhou††, Wenwu Yin*, Shunxiang Zhang‡‡, Yuelong Shu*, Maowu Wang*, Yu Wang*, Chin-Kei Lee§§, Timothy M. Uyeki¶¶, Weizhong Yang*Comments to Author , and for the Avian Influenza H5N1 Study Group2
Author affiliations: *Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China; †Hubei Center for Disease Control and Prevention, Wuhan, People’s Republic of China; ‡International Field Epidemiology Training Program, Bangkok, Thailand; §National Institute for Viral Disease Control and Prevention, Beijing, People’s Republic of China; ¶Guangdong Center for Disease Control and Prevention, Guangzhou, People’s Republic of China; #Shanghai Center for Disease Control and Prevention, Shanghai, People’s Republic of China; **Fujian Center for Disease Control and Prevention, Fuzhou, People’s Republic of China; ††Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China; ‡‡Shenzhen Center for Disease Control and Prevention, Shenzhen, People’s Republic of China; §§World Health Organization, Beijing, People’s Republic of China; ¶¶Centers for Disease Control and Prevention, Atlanta, Georgia, USA;

Main Article

Table 2

Exposure history of 6 influenza A (H5N1) case-patients from urban areas of China

No. Epidemiologic information
1
41-y-old female factory worker, previously healthy, with a history of thymectomy for benign thymoma 6 wk before illness onset, had recovered fully, did not require any medications, and resumed working. She visited a wet market nearly every day the week before illness onset but did not purchase poultry or poultry products. No poultry were kept in her home or neighborhood.
2
29-y-old woman, previously healthy, worked at a stall that she owned at a wet market, selling groceries and eggs. Her stall was ≈20 m away from stalls selling and slaughtering live poultry. No poultry were kept in her home or neighborhood.
3
32-y-old man, previously healthy, quit his job 1 mo before illness onset and was planning to start his own food business. He visited up to 9 wet markets for 10–40 min every day during the week before illness onset. At 1 wet market, he spent most of his time in a sauce store that was ≈5 m away from stalls where poultry were slaughtered and sold. No poultry were kept in his home or neighborhood.
4
29-y-old woman, previously healthy, moved from Guangdong to Shanghai 2 mo before illness onset. She worked as a cook for 14 people at a construction site, where she lived temporarily, and visited a wet market every day to buy fresh food, including freshly slaughtered chickens, 1 wk before illness onset. No poultry were kept in her home or neighborhood.
5
21-y-old man, previously healthy, was a security guard for an aircraft-repairing factory in Wuhan. Two wk before illness onset, he traveled to his hometown in the rural area of Enshi to attend the funeral of his uncle, who died of esophageal cancer. The man stayed there for 6 d, visited his parents’ home, where healthy backyard poultry were kept (none became sick or died), and visited a wet market. One wk before onset, he traveled back to his workplace in Wuhan, bringing 200 eggs from his hometown. In Wuhan, he had no direct contact with poultry, and he did not visit any wet markets. No poultry were kept in his home or neighborhood.
6 31 y-old man, previously healthy, worked as a truck driver for shoe factories in Shenzhen city. Two d before illness onset, he visited a wet market once, but he did not purchase any poultry or poultry products. One wk before onset, his wife visited the same market and brought a live chicken that was slaughtered at the market. No abnormal dieoffs of poultry were reported. No poultry were kept in his home or neighborhood.

Main Article

1These authors contributed equally to this work.

2Members of the Chinese Center for Disease Control and Prevention Avian Influenza H5N1 Study Group are Shuyun Xie, Zhitao Liu, Xuefeng Tang, and Jun Li. Members of the Provincial Center for Disease Control and Prevention Avian Influenza H5N1 Study Group are Gongping Liu, Jianming Ou, Shaojian Cai, Ting Huang, Tie Song, De Wu, and Xiaodong Sun.

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