Asymptomatic carrier state of dermatophytes on laboratory rodents and the perfect state of Trichophyton mentagrophytes isolated from albino rats

실험용 설치류의 피부사상균 보균실태와 albino rat에서 분리한 Trichophyton mentagrophytes의 완전형

  • Lee, Hun-jun (Department of Veterinary Medicine, College of Agriculture, Chungnam National University) ;
  • Choi, Won-pil (College of Veterinary Medicine, Kyungpook National University) ;
  • Jun, Moo-hyung (Department of Veterinary Medicine, College of Agriculture, Chungnam National University)
  • 이헌준 (충남대학교 농과대학 수의학과) ;
  • 최원필 (경북대학교 수의과대학) ;
  • 전무형 (충남대학교 농과대학 수의학과)
  • Received : 1989.12.02
  • Published : 1990.01.31

Abstract

The present study was conducted in order to elucidate the asymptomatic carrier state of dermatophytes on the laboratory rodents in Korea during the period from August 1986 to April 1987. A total of 988 laboratory rodents, comprising 393 albino rats, 285 albino mice, 238 guinea pigs and 72 hamsters, were randomly selected for the isolation of dermatophytes from 6 research institutes and 2 breeding farms. And the mating experiments were performed to identified the perfect states of Trichophyton mextagrophytes isolated from albino rats. Dermatophytes were recovered from 94 of 393(23.9%) albino rats and from 3 of 5 colonies. Isolation rate of each colony was 38.4%, 32.0% and 9.8%, respectively, and the albino rats over 2 months old(28.2%) were higher than below 2 months old(2.9%) in the isolation rate of dermatophytes. Among 94 strains of dermatophytes isolated from albino rats, all the strains were identified T mentagrophytes, except 1 strain of Microsporum gypseum, and its perfect states were Arthroderma $vanbreuseghemii^+$.