Table 1. Comparison of epidemiological indicators, clinical characteristics, and laboratory findings among patients with clonorchiasis in two cluster outbreaks in Henan Province.
| Features | Local outbreak | Imported outbreak | ||||
| n | Value range | n | Value range | |||
| Note: All cases identified in the imported outbreak were diagnosed on the same day. "–" means that the data are no applicable or no available for this group. | ||||||
| Gender | ||||||
| Male | 2 | – | 3 | – | ||
| Female | 3 | – | 2 | – | ||
| Age (y) | – | 11–36 | – | 33–59 | ||
| Location of exposure | – | Zhengzhou, Henan | – | Foshan, Guangdong | ||
| Food source | – | Guangdong | – | Guangdong | ||
| Attack rate | – | 5/5 | – | 5/7 | ||
| Incubation period (d) | 3 | 24–46 | 4 | 19–25 | ||
| Exposure-to-diagnosis interval (d) | 5 | 41–70 | 5 | 49 | ||
| Chief complaints | ||||||
| Fever | 2 | – | 3 | – | ||
| Nausea | 1 | – | 3 | – | ||
| Loss of appetite | 1 | – | 4 | – | ||
| Abdominal pain | 2 | – | 4 | – | ||
| No symptoms | 2 | – | 1 | – | ||
| Parameters | ||||||
| Eosinophil percentage (%) | 5 | 10.1–61.1 | 5 | 23.2–76.5 | ||
| Alanine aminotransferase (U/L) | 4 | 60–122 | 2 | 137–323 | ||
| Aspartate aminotransferase (U/L) | 1 | 82 | 2 | 60–137 | ||
| Alkaline phosphatase (U/L) | 3 | 110–396 | 2 | 326–650 | ||
| γ-glutamyl transferase (U/L) | 1 | 166 | 2 | 313–534 | ||
| Eggs per gram of stool | 5 | 48–144 | 5 | 120–360 | ||