Cho Shin-Hyeong, Sohn Woon-Mok, Na Byoung-Kuk, Kim Tong-Soo, Kong Yoon, Eom Keeseon, Seok Won-Seok, Lee Taejoon
Division of Malaria and Parasitic Diseases, National Institute of Health, Centers for Disease Control and Prevention, Osong 363-951, Korea.
Korean J Parasitol. 2011 Dec;49(4):385-98. doi: 10.3347/kjp.2011.49.4.385. Epub 2011 Dec 16.
A large-scale survey was conducted to investigate the infection status of fresh water fishes with Clonorchis sinensis metacercariae (CsMc) in 3 wide regions, which were tentatively divided by latitudinal levels of the Korean peninsula. A total of 4,071 freshwater fishes were collected from 3 regions, i.e., northern (Gangwon-do: 1,543 fish), middle (Chungcheongbuk-do and Gyeongsangbuk-do: 1,167 fish), and southern areas (Jeollanam-do, Ulsan-si, and Gyeongsangnam-do: 1,361 fish). Each fish was examined by the artificial digestion method from 2003 to 2010. In northern areas, only 11 (0.7%) fish of 2 species, Pungtungia herzi and Squalidus japonicus coreanus from Hantan-gang, Cheolwon-gun, Gangwon-do were infected with av. 2.6 CsMc. In middle areas, 149 (12.8%) fish were infected with av. 164 CsMc. In southern areas, 538 (39.5%) fish were infected with av. 159 CsMc. In the analysis of endemicity in 3 regions with an index fish, P. herzi, 9 (6.2%) of 146 P. herzi from northern areas were infected with av. 2.8 CsMc. In middle areas, 34 (31.8%) of 107 P. herzi were infected with av. 215 CsMc, and in southern areas, 158 (92.9%) of 170 P. herzi were infected with av. 409 CsMc. From these results, it has been confirmed that the infection status of fish with CsMc is obviously different among the 3 latitudinal regions of the Korean peninsula with higher prevalence and burden in southern regions.
开展了一项大规模调查，以调查韩国半岛按纬度水平初步划分的3个广泛区域内淡水鱼感染华支睾吸虫囊蚴（CsMc）的状况。从3个区域共采集了4071条淡水鱼，即北部地区（江原道：1543条鱼）、中部地区（忠清北道和庆尚北道：1167条鱼）和南部地区（全罗南道、蔚山市和庆尚南道：1361条鱼）。2003年至2010年期间，采用人工消化法对每条鱼进行检查。在北部地区，仅江原道铁原郡汉滩江的2种鱼，即赫氏薄鳅和韩国麦穗鱼中的11条（0.7%）感染了平均2.6个华支睾吸虫囊蚴。在中部地区，149条（12.8%）鱼感染了平均164个华支睾吸虫囊蚴。在南部地区，538条（39.5%）鱼感染了平均159个华支睾吸虫囊蚴。在以指示鱼赫氏薄鳅对3个区域的地方性进行分析时，北部地区146条赫氏薄鳅中有9条（6.2%）感染了平均2.8个华支睾吸虫囊蚴。在中部地区，107条赫氏薄鳅中有34条（31.8%）感染了平均215个华支睾吸虫囊蚴，在南部地区，170条赫氏薄鳅中有158条（92.9%）感染了平均409个华支睾吸虫囊蚴。从这些结果可以确认，韩国半岛3个纬度区域内鱼感染华支睾吸虫囊蚴的状况明显不同，南部地区的感染率和感染负荷更高。
