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Volume 30, Number 3—March 2024
Dispatch

High Prevalence of Echinostoma mekongi Infection in Schoolchildren and Adults, Kandal Province, Cambodia

Bong-Kwang Jung1, Taehee Chang1, Seungwan Ryoo, Sooji Hong, Jeonggyu Lee, Sung-Jong Hong, Woon-Mok Sohn, Virak Khieu, Rekol Huy, and Jong-Yil ChaiComments to Author 
Author affiliations: MediCheck Research Institute, Korea Association of Health Promotion, Seoul, South Korea (B.-K. Jung, S. Ryoo, S. Hong, J. Lee); Seoul National University Graduate School of Public Health, Seoul (T. Chang); Seoul National University College of Medicine, Seoul (J.-Y. Chai); Convergence Research Center for Insect Vectors, Inchon National University, Incheon, South Korea (S.-J. Hong); Gyeongsang National University College of Medicine, Jinju, South Korea (W.-M. Sohn); National Center for Parasitology, Entomology and Malaria Control, Ministry of Health, Phnom Penh, Cambodia (V. Khieu, R. Huy)

Main Article

Figure 1

Study area and specimens of Echinostoma mekongi flukes and Pila sp. snails for study of E. mekongi infection in schoolchildren and adults, Kandal Province, Cambodia. A) Study area in Cambodia. B) Adult specimen of E. mekongi fluke expelled from a volunteer after chemotherapy and purging. Scale bar = 1.2 mm. C, D) Pila sp. snails purchased from a local market in Kandal Province, showing variable sizes. The presence of metacercariae in these snails was confirmed. Scale bar in panel D = 3 cm. E) Metacercaria of E. mekongi encysted in the tissue of a Pila sp. snail, showing its characteristic structures, including 37 collar spines (arrows), oral sucker, ventral sucker, and excretory granules. Scale bar = 50 m. EG, excretory granules; OS, oral sucker; OV, ovary; T, testis; VS, ventral sucker.

Figure 1. Study area and specimens of Echinostoma mekongi flukes and Pila sp. snails for study of E. mekongi infection in schoolchildren and adults, Kandal Province, Cambodia. A) Study area in Cambodia. B) Adult specimen of E. mekongi fluke expelled from a volunteer after chemotherapy and purging. Scale bar = 1.2 mm. C, D) Pila sp. snails purchased from a local market in Kandal Province, showing variable sizes. The presence of metacercariae in these snails was confirmed. Scale bar in panel D = 3 cm. E) Metacercaria of E. mekongi encysted in the tissue of a Pila sp. snail, showing its characteristic structures, including 37 collar spines (arrows), oral sucker, ventral sucker, and excretory granules. Scale bar = 50 m. EG, excretory granules; OS, oral sucker; OV, ovary; T, testis; VS, ventral sucker.

Main Article

1These authors contributed equally to this article.

Page created: January 31, 2024
Page updated: February 22, 2024
Page reviewed: February 22, 2024
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