Table S1.
S. aureus strains used in this study
| Strain | Resistance | Isolation source | Source |
| JE2 | Methicillin | (44, 45) | |
| MRSA 1369 | Methicillin | Urine | (27) |
| MRSA 1369 clfA::tn | Methicillin ErmR | This study | |
| MRSA 1369 clfB::tn | Methicillin ErmR | This study | |
| SSTI-MRSA | Methicillin | Skin and soft tissue, infection | This study |
| Co-MRSA | Methicillin | Skin of the groin, colonization | This study |
| PUTS-1 4-147 | Penicillin | Urine, asymptomatic | This study |
| TOP6-555 | Urine | (65) |