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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.564

 

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BLL_2022_116

Title: Susceptibility of Staphylococcus aureus strains to commercial therapeutic phage preparations
Author: Marek STRAKA, Zuzana HUBENAKOVA, Aneta LICHVARIKOVA, Lucia JANOSIKOVA, Barbora MARKUSKOVA, Andrej MINICH, Adriana LIPTAKOVA, Hana DRAHOVSKA, Livia SLOBODNIKOVA

Abstract: OBJECTIVES: The aim of this study was to determine the susceptibility of Staphylococcus aureus strains to commercial phage preparations. The strains were isolated from clinical patients as well as from nasal mucosa of healthy carriers.
BACKGROUND: The elevating number of antibiotic-resistant S. aureus strains present a therapeutic challenge, especially in high-risk patients. One of the promising ways to solve this problem is phage therapy.
METHODS: Susceptibility of 111 carrier strains of S. aureus (4 strains were methicillin-resistant; MRSA) and 81 clinical isolates from bloodstream or skin and soft tissue infections (28 were MRSA) to four commercial phage preparations was assessed in vitro by spot assay. The clonality of S. aureus strains was determined by spa typing.
RESULTS: Spa typing revealed 97 distinct spa types. A proportion of 73–80 % of the tested S. aureus strains were revealed to have in vitro phage susceptibility, depending on the clonal affiliation of the strains and phage preparation tested. The susceptibility to phage preparations was significantly higher in MRSA strains (p < 0.001).
CONCLUSIONS: In vitro results indicate a promising therapeutic potential of the tested commercial anti-staphylococcal phage preparations. They could be applied to a broad spectrum of bacterial clones, and have an excellent activity especially against MRSA strains (Tab. 2, Fig. 2, Ref. 43).

Keywords: Staphylococcus aureus, MRSA, therapeutic phages, S. aureus nasal carriage, skin and soft tissue infections, staphylococcal bacteriemia
Published online: 23-Jul-2022
Year: , Volume: , Issue: Page From: , Page To:
doi:10.4149/BLL_2022_116


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