Table 3.

Further screening of the distribution of AES-I genetic loci in P. aeruginosa strains

Isolates	oprL	HW2	HW3
Second screen
AES-I (n = 18)	18	18	14
non AES-I CF (n = 29)a	29	0	0
non-CF clinical (n = 52)	52	0	0
CF clinic screen
AES-I (n = 8)	8	8	7
non AES-I CF (n = 46)	46	0	0

^a includes Liverpool, Manchester, Midlands, Trent, Stoke and AES-II epidemic strains