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Group Name MRSA1 Group member name Raluca Datcu Mihaela Oprea

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Presentation on theme: "Group Name MRSA1 Group member name Raluca Datcu Mihaela Oprea"— Presentation transcript:

1 Group Name MRSA1 Group member name Raluca Datcu Mihaela Oprea Oana Barbu Anita Forslund Cathrine Fladeby Mona Holberg

2 Isolates Sample name Subtype Notes ERR070039-P11 ST2371
From Patient 11 ERR P15 From Patient 15 ERR P26 From Patient 26 ERR HW From Health Care Worker - misses the ermC plasmid ERR not-outbreak ST1 Not part of the outbreak

3 Result of species identification (KmerFinder)
Strain Species acc. to Harris et al 2013 Predicted species Closest matching strain Template coverage ERR P11 S. aureus S. aureus subsp. aureus HO 97.46 ERR P15 ERR P26 97.44 ERR HW ERR not-outbreak MSSA 476 98.59

4 Representative KmerFinder result

5 Result of Multilocus Sequence Typing (MLST)
Strain ST acc. to Harris et al 2014 Predicted ST ERR P11 ST-2371 ERR P15 ERR P26 ERR HW ERR not-outbreak ST-1

6 Representative Multilocus Sequence Typing result

7 Result of antibiotics resistance analysis
Isolate Cefoxitin/Methicillin (MecA) Cipro-floxacin (chromo-somal mutation) Erythro-mycin (Erm(A), Erm(B), Erm(C)) Fusidic acid (chromo-somal mutation) Gentamicin (aac(6’)-aph(2'')) Mupirocin (chromo-somal mutation) Rifampicin (chromo-somal mutation) Tetra-cycline (tetC, tetM, tetR, tetS Vancomycin (Chromo-somal mutations or the vanA or vanB gene cluster.) Neomycin (aadD, aac(6')-aph(2'')) P11 Res Unknown Sus P15 P26 HW non-out-break How is the agreement with the results presented in Harris et al 2013? Good agreement, but for the HW isolate our DNA did not contained erm genes, and Harris identified both susceptible and resistant colonies to erythromycin

8 Result of plasmid analysis
Isolate rep10 repUS12 rep20 rep5 rep16 rep7 ERR P11 NODE 1 NODE 25 NODE 37 37 - ERR P15 NODE 15 ERR P26 NODE 9 NODE 5 NODE 80 ERR HW NODE 142 ERR not-outbreak NODE 2 NODE 8 For each strain write which node the replicon was found on. If not found, leave the cell empty. Which plasmid is the ermC gene on? - PLASMID rep10

9 Distance matrix made by NDtree and tree made with neighbour-joining

10 Tree made with neighbour-joining

11 Distance matrix made by CSIPhylogeny and tree made with neighbour-joining

12 Tree made with neighbour-joining


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