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  • Title: Bacteremia due to high-level daptomycin-resistant Corynebacterium striatum: A case report with genetic investigation.
    Author: Hagiya H, Kimura K, Okuno H, Hamaguchi S, Morii D, Yoshida H, Mitsui T, Nishi I, Tomono K.
    Journal: J Infect Chemother; 2019 Nov; 25(11):906-908. PubMed ID: 31101531.
    Abstract:
    Corynebacterium striatum, generally considered an opportunistic organism in humans, has recently been known to develop high-level daptomycin resistance (HLDR) shortly after drug exposure. To date, however, only several such clinical isolates have been described in the literature and clinical background of the resistant pathogen remains to be elucidated. Here, we report a case involving a C. striatum strain with HLDR harboring novel nucleotide mutations, together with a review of the relevant literature. To the best of our knowledge, this is the first well-investigated clinical report from Japan including a genetic investigation. Considering the rapid emergence of HLDR C. striatum in vitro experiment, there could be a number of underreporting cases. Scrupulous attention is required when administering daptomycin for the treatment of C. striatum infections, even if the organism has initially exhibited susceptibility.
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