Hernandez Santos H, Clark J, Terwilliger A, Maresso A. Discovery of the First Lytic
Staphylococcus pseudintermedius/
Staphylococcus aureus Polyvalent Bacteriophages.
PHAGE (NEW ROCHELLE, N.Y.) 2022;
3:116-124. [PMID:
36157281 PMCID:
PMC9248872 DOI:
10.1089/phage.2022.0004]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Background
There are no verified lytic Staphylococcus pseudintermedius phages in the literature and few temperate phage genomes in databases. S. pseudintermedius is an opportunistic zoonotic pathogen of great importance in veterinary and human medicine.
Materials and Methods
We discovered phages against canine-derived S. pseudintermedius isolates by screening dog feces, hair, and skin swabs. Fourteen new phages were isolated and characterized by genomic analysis, transmission electron microscopy, and host range determination.
Results
Three phages-DH2, DH5, and DS10, a phage K variant-were predicted lytic by sequencing, a designation supported by mitomycin C induction. All three are S. pseudintermedius and Staphylococcus aureus polyvalent phages, with DH2 and DS10 being strong killers of both species.
Conclusions
We report discovery of the first verified lytic S. pseudintermedius phages and suggest dog hair as a novel reservoir. DH2, DH5, and DS10 are promising candidates toward developing an anti-Staphylococcal phage cocktail.
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