Volume 26, Number 12—December 2020
Research
Outbreak of Haff Disease along the Yangtze River, Anhui Province, China, 2016
Huilai Ma1, Jiabing Wu1, Wei Qin1, Chao Lin, Dan Li, Bing Zha, Qi Chen, Yan Ma, Tichao Zhou, Shicong Li, Lei Gong, Wanwan Ma, Dafang Ge, Zhouxiang Cheng, Jian Chen, and Qun Li
Table 1
Clinical characteristics during Haff disease outbreak in Anhui Province, China, 2016
| Symptoms | No. cases (%), N = 495 |
|---|---|
| Myalgia | 495 (100.0) |
| Back | 241 (48.7) |
| Waist | 194 (39.2) |
| Whole-body | 186 (37.6) |
| Neck | 186 (37.6) |
| Lower limbs | 111 (22.4) |
| Upper limbs | 89 (18.0) |
| Chest |
59 (11.9) |
| Muscle weakness | 271 (54.7) |
| Brown urine | 99 (20.0) |
| Dyspnea | 60 (12.1) |
| Headache | 49 (9.9) |
| Abdominal pain | 46 (9.3) |
| Diarrhea | 32 (6.5) |
| Vomiting | 29 (5.9) |
| Dizziness | 25 (5.1) |
| Nausea | 21 (4.2) |
| Nerve paralysis | 11 (2.2) |
| Fever | 1 (0.2) |
1These authors contributed equally to this article.
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