Korean J Parasitol.  2006 Jun;44(2):163-166. 10.3347/kjp.2006.44.2.163.

Susceptibility of experimental animals to reinfection with Clonorchis sinensis

Affiliations
  • 1Department of Parasitology and Institute of Health Sciences, Gyeongsan National University College of Medicine, Jinju 660-751, Korea.
  • 2Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul 110-799, Korea. hst@snu.ac.kr

Abstract

The present study observed the resistance to reinfection with Clonorchis sinensis in various experimental animals including mice, guinea pigs, rabbits, and dogs, as well as rats and hamsters. The resistance rates to reinfection in rats, mice, hamsters, guinea pigs, rabbits, and dogs were 79.7%, 58.0%, -12.6%, 54.8%, 62.6%, and 6.0%, respectively. Worms recovered from reinfected rats and mice were immature, and significantly smaller than those from the primarily infected (P < 0.01), whereas those from other animals were fully matured to adults. These findings indicate that the protective response against reinfection with C. sinensis is prominent in rats and mice, and that they may be a good animal model to investigate the mechanism of resistance to reinfection with C. sinensis.

Keyword

Clonorchis sinensis; liver fluke; reinfection; resistance; rats; mice

MeSH Terms

Rats
Rabbits
Praziquantel/therapeutic use
Mice
Guinea Pigs
Dogs
Cricetinae
Clonorchis sinensis/immunology/*physiology
Clonorchiasis/drug therapy/immunology
Anthelmintics/therapeutic use
Animals, Laboratory/immunology/*parasitology
Animals
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