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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

Weizhong Yang*1, Zijian Feng*1, Xianfeng Zhang†1, Nijuan Xiang*, Yang Huai*‡, Lei Zhou*, Qiao Sun*, Cuiling Xu§, Huiming Luo¶, Jianfeng He¶, Xuhua Guan†, Zhengan Yuan#, Yanting Li#, Longshan Xu**, Rongtao Hong**, Xuecheng Liu††, Xingyu Zhou††, Wenwu Yin*, Shunxiang Zhang‡‡, Junhua Li*, Maowu Wang*, Yu Wang*, Chin-Kei Lee§§, Timothy M. Uyeki¶¶, Sheng Wei*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 1

Characteristics of 6 human influenza A (H5N1) case-patients from urban areas of China

Characteristic Case-patient
1 2 3 4 5 6
Location
(city, province) Sanming,
Fujian Chengdu, Sichuan Guangzhou, Guangdong Shanghai, Shanghai Wuhan, Hubei Shenzhen, Guangdong
Residence Apartment Apartment Apartment Temporary, at
construction site Dormitory Apartment
Illness onset date Dec 6, 2005 Jan 10, 2006 Feb 22, 2006 Mar 13, 2006 Apr 1, 2006 Jun 3, 2006
Days from onset to investigation 6 7 6 8 10 8
Contact with ill persons before onset No No No No No No
Days from onset to first medical visit 2 4 3 2 5 4
Days from onset to hospital admission 3 7 5 9 11 7
Primary signs and symptoms at admission Fever, headache, cough Fever, cough, diarrhea, myalgia Fever, chills, cough, shortness of breath Fever, chills, cough Fever, headache, sore throat, cough, myalgia Fever, chills, productive cough, back pain
Complications* Respiratory failure, ARDS, cardiac failure, septicemia Respiratory failure, ARDS, cardiac failure, septicemia Respiratory failure, ARDS Respiratory failure, ARDS, cardiac failure Respiratory failure, ARDS, cardiac failure, septicemia Respiratory failure, ARDS
Outcome Died Died Died Died Died Survived
Days from onset to death 16 14 9 9 19 Discharged 
61 d from onset

*Respiratory failure was defined as the need for ventilator support; ARDS, acute respiratory distress syndrome, is a life-threatening condition in which inflammation of the lungs and accumulation of fluid in the air sacs (alveoli) lead to low blood oxygen levels; cardiac failure was defined as the requirement of isotropic agents.

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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