TABLE 1.

Strains used in this study

Source	Isolate no.
Clinical strains from Western Australia
2000-2004	951, 966, 1054, 1074, 1084, 1094, 1117, 1169, 1192, 1221, 1222, 1228, 1238, 1300, 1311, 1343
1988-1999	148, 150, 248, 249, 425, 460, 538, 542, 547, 552, 590
AMMRL strains from Eastern Australia	1390 (15.13), 1391 (15.17), 1392 (15.18), 1393 (15.26), 1394 (15.32), 1395 (15.35)
QAP strains	493 (1993:3:5C), 707 (1996:3:6A), 881 (1999:8:8A), 1051 (2002:2:7B)
Hay isolates	1318 (Hay15), 1319 (Hay18), 1320 (Hay24), 1321 (Hay33#2), 1322 (Hay12), 1323 (Hay13), 1324 (Hay39#2), 1325 (Hay45), 1326 (Hay43), 1327 (Hay39#2), 1328 (Hay4), 1329 (Hay29), 1330 (Hay30), 1331 (Hay33#1), 1332 (Hay34), 1333 (Hay 46)