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  • Title: Molecular method for typing Mycobacterium ulcerans.
    Author: Jackson K, Edwards R, Leslie DE, Hayman J.
    Journal: J Clin Microbiol; 1995 Sep; 33(9):2250-3. PubMed ID: 7494010.
    Abstract:
    A cluster of Mycobacterium ulcerans infections has recently occurred on Phillip Island, Victoria, Australia. Previous cases of infection have generally been located around Bairnsdale in southeast Gippsland. The aim of this study was to determine the epidemiological relationship between these strains and other strains originating in Australia and Africa. The previously described plasmid pTBN12 was used as a probe with restriction enzyme-digested chromosomal DNA to differentiate the strains of M. ulcerans. The probe was able to distinguish 11 restriction fragment length polymorphisms (RFLPs). Forty-three strains originating in Victoria were divided into three types, i.e., V1, V2, and V3. The majority of strains (40) yielded a type V1 pattern, including strains from southeast Gippsland. Fourteen strains from Queensland yielded three additional RFLP types, i.e., Q1, Q2, and Q3. Five strains from Benin and seven strains from Zaire yielded five additional RFLP types. It is envisaged that molecular typing of M. ulcerans strains from around the world may have a great impact on understanding of the epidemiology of infection with this organism.
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