| Sook Park | 2 Articles |
The purpose of this study was to ascertain the status and patterns of pinworm Enterobius vermicularis infection among preschool children in Jeollanam-do from 2023 to 2025. Further, it aimed to assess changes in infection rates during the implementation of the test-and-treatment strategy. Cellophane tape swabs were collected from 12,608 children aged 0–6 years enrolled in daycare or kindergarten facilities in 8 cities and counties of Jeollanam-do. The samples were examined under a light microscope to diagnose pinworm infection. The overall infection rate over the 3-year period was 0.22% (28/12,608). The annual infection rate declined continuously from 0.35% in 2023 to 0.06% in 2025 (trend P<0.05). The infection rate did not vary significantly with sex (P>0.05), but was significantly higher in the 4–6 year age group (P<0.05), and was highest in Jangheung-gun (0.65%) and Goheung-gun (0.37%). The overall infection rate in this study was substantially lower than previously reported. However, this may represent a transient phenomenon reflecting environmental or behavioral factors associated with this specific period. Therefore, continuous monitoring is necessary.
The present study was performed to investigate the infection status with Clonorchis sinensis metacercariae (CsMc) in fishes from 2 sites, the middle and lower reaches, of Tamjin-gang (River) in Jeollanam-do, the Republic of Korea. Total 1,132 fishes in 22 species were collected from the middle reaches in Jangheung-gun for 4 years (2014-2017) and 517 fishes in 17 species were also collected from the lower reaches in Gangjin-gun in 2014 and 2017. They were all individually examined with the artificial digestion method in our laboratory. CsMc were detected in 322 (28.5%) out of 1,132 fishes from Jangheung-gun, and in 161 (31.1%) out of 517 fishes from Gangjin-gun, and their densities were 51 and 57 per fish infected each. In the fish species with CsMc, positive rates were 61.5% in Jangheung-gun and 62.7% in Gangjin-gun. A total of 222 Pungtungia herzi were examined and they were all infected with CsMc. The average intensity was 103 CsMc in the index fish, P. herzi (95 in Jangheung-gun and 121 in Gangjin-gun). In P. herzi bimonthly examined in 2017, the intensity was commonly most higher in March in 2 surveyed sites, however the significant seasonal endemicity was not showed. Conclusively, it was confirmed that CsMc is more or less prevalent in fishes from Tamjin-gang and their endemicity is higher in fish from the lower reaches in Gangjin-gun than the middle reaches in Jangheung-gun in Jeollanam-do, Korea.
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