Korean J Parasitol.
2015 Feb;53(1):135-139. 10.3347/kjp.2015.53.1.135.
Intestinal Nematodes from Small Mammals Captured near the Demilitarized Zone, Gyeonggi Province, Republic of Korea
- Affiliations
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- 1Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 110-799, Korea. cjy@snu.ac.kr
- 2Department of Parasitology, College of Medicine, Dankook University, Chonan 330-714, Korea.
- 3Seoul National University Bundang Hospital, Seongnam 463-707, Korea.
- 4Public Health Command Region-Pacific Unit 45006, APO AP 96343, USA.
- 55th Medical Detachment, 168 th Multifunctional Medical Battalion, 65 th Medical Brigade, Unit 15247, APO AP 96205-5247, USA.
- 6Department of Microbiology, College of Medicine, Korea University, Seoul 136-705, Korea.
- KMID: 2381809
- DOI: http://doi.org/10.3347/kjp.2015.53.1.135
Abstract
- A total of 1,708 small mammals (1,617 rodents and 91 soricomorphs), including Apodemus agrarius (n = 1,400), Microtus fortis (167), Crocidura lasiura (91), Mus musculus (32), Myodes (= Eothenomys) regulus (9), Micromys minutus (6), and Tscherskia (= Cricetulus) triton (3), were live-trapped at US/Republic of Korea (ROK) military training sites near the demilitarized zone (DMZ) of Paju, Pocheon, and Yeoncheon, Gyeonggi Province from December 2004 to December 2009. Small mammals were examined for their intestinal nematodes by necropsy. A total of 1,617 rodents (100%) and 91 (100%) soricomorphs were infected with at least 1 nematode species, including Nippostrongylus brasiliensis, Heligmosomoides polygyrus, Syphacia obvelata, Heterakis spumosa, Protospirura muris, Capillaria spp., Trichuris muris, Rictularia affinis, and an unidentified species. N. brasiliensis was the most common species infecting small mammals (1,060; 62.1%) followed by H. polygyrus (617; 36.1%), S. obvelata (370; 21.7%), H. spumosa (314; 18.4%), P. muris (123; 7.2%), and Capillaria spp. (59; 3.5%). Low infection rates (0.1-0.8%) were observed for T. muris, R. affinis, and an unidentified species. The number of recovered worms was highest for N. brasiliensis (21,623 worms; mean 20.4 worms/infected specimen) followed by S. obvelata (9,235; 25.0 worms), H. polygyrus (4,122; 6.7 worms), and H. spumosa (1,160; 3.7 worms). A. agrarius demonstrated the highest prevalence for N. brasiliensis (70.9%), followed by M. minutus (50.0%), T. triton (33.3%), M. fortis (28.1%), M. musculus (15.6%), C. lasiura (13.2%), and M. regulus (0%). This is the first report of nematode infections in small mammals captured near the DMZ in ROK.
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