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Number of MRSA and MSSA isolates included in each period and corresponding biocide usage
| Time period (yrs) | Biocide usage |
No. of isolates |
||
|---|---|---|---|---|
| Chlorhexidine | Octenidine | MSSA | MRSA | |
| 1 (1928–1953) | None | None | 18 | 0 |
| 2 (1954–2001) | Minimal | None | 10 | 53 |
| 3 (2002–2012) | Significant | None | 1 | 47 |
| 4 (2013–2014) | Significant | Significant | 0 | 31 |
