Volume 12, Number 6—June 2006
Research
Human Streptococcus suis Outbreak, Sichuan, China
Hongjie Yu*1, Huaiqi Jing†1, Zhihai Chen‡1, Han Zheng†, Xiaoping Zhu§, Hua Wang¶, Shiwen Wang*, Lunguang Liu§, Rongqiang Zu*, Longze Luo§, Nijuan Xiang*, Honglu Liu§, Xuecheng Liu§, Yuelong Shu*, Shui Shan Lee#, Shuk Kwan Chuang**, Yu Wang*, Jianguo Xu†, Weizhong Yang*
, and the Streptococcus suis study groups
, and the Streptococcus suis study groupsTable 1
Demographic features and exposure history of 215 Streptococcus suis patients in Sichuan, China, 2005
| Characteristic | Probable cases, n = 149 | Confirmed cases, n = 66 | Total, N = 215 | |
|---|---|---|---|---|
| Demographic features | ||||
| Male (%) | 120 (81) | 60 (91) | 180 (84) | |
| Median age, y (range) | 54 (26–82) | 57 (33–81) | 54 (26–82) | |
| Farmer (%) | 145 (97) | 62 (94) | 207 (96) | |
| Other occupation (%)* | 4 (3) | 4 (6) | 8 (4) | |
| Wounds on hands during pig exposure (%) | 74 (50) | 30 (45) | 104 (48) | |
| Exposure history 7 days before onset of symptom, no. (%) | ||||
| Slaughtered sick pig or goat | 93 (62) | 47 (71) | 140 (65) | |
| Prepared carcasses of pig or goat without slaughtering | 44 (30) | 16 (24) | 60 (28) | |
| Other exposure to sick pigs | 12 (8) | 3 (5) | 15 (7) | |
| Only ate meat from sick/dead pig/goat | 0 | 0 | 0 | |
| Only contact with known case-patients | 0 | 0 | 0 | |
*Fed sick pigs or handled carcasses (e.g., sold carcasses, buried carcasses) of pigs that died from unexplained illness.
1These authors contributed equally to this article.
2Members of the Chinese Center for Disease Control and Prevention Streptococcus suis study group are Wenjun Zhong, Ling Meng, Yongjun Gao, Huamao Du, Changyu Ye, Zhigang Cui, Shouyin Zhang, and Dong Jin. Members of the Sichuan Center for Disease Control and Prevention Streptococcus suis study group are Li Liu, Heng Yuan, Bin Ouyang, Qiang Lv, Yan Huang, Ting Huang, Xingyu Zhou, Liao Feng, and Qidi Pang.
