Table 1.

Description of 52 patients and 84 isolates associated with the Acinetobacter baumannii pulsotype 27 outbreak in Birmingham, England, 2011 to 2013

Patient no. or environmental source	Length of hospital stay (days)	Isolate no.	Time of isolation (days)		Genotype	SNVs/plasmid loss (p indicates loss of plasmid)
			From admission	From start of outbreak
1	231	1a	3	3	1.0	0
		1b	21	21	1.1	1,p
2	24	2	7	12	1.0	0
4	88	4	25	36	2.1	2,4,p
6	29	6	6	42	2.0	2
7	422	7	3	55	1.2	3
8	23	8	9	56	2.0	2
9	83	9	52	60	2.2	2,7
10	15	10	65	65	2.3	2,7,10,11
11	99	11	11	65	2.0	2
12	39	12	6	73	2.0	2
13	62	13	3	81	1.0	0
14	77	14	24	87	3.0	2,6
15	LOST: not included in transmission analysis
16	31	16	12	90	1.0	0
17	535	17	24	94	2.0	2
18	15	18	2	97	3.0	2,6
19	58	19	19	123	3.0	2,6
20	49	20a	12	135	4.0	2,5,9
		20b	13	136	4.0	2,5,9
21	19	21	1	138	4.0	2,5,9
22	84	22	31	144	2.4	2,5
23	45	23	10	147	2.5	2,5,8
24	218	24a	25	165	4.0	2,5,9
		24b	194	334	4.10	2,5,9,12,p
25	19	25	8	180	5.0	2,5,9,p
26	197	26a	17	180	4.1	2,5,9,13
		26b	25	188	4.0	2,5,9
		26c	100	263	4.2	2,5,9,13,22,p
		26d	100	263	4.2	2,5,9,13,22,p
		26e	102	265	4.6	2,5,9,14
		26f	102	265	4.2	2,5,9,13,22,p
27	82	27a	13	209	4.0	2,5,9
		27b	19	215	4.3	2,5,9,15
		27c	21	217	4.0	2,5,9
28	114	28a	31	227	LOST: mixed culture
		28b	43	239
		28c	61	257
29	64	29*	83	227 (GP)	5.0	2,5,9,p
30	23	30a	10	237	4.0	2,5,9
		30b	13	240	4.0	2,5,9
31	66	31a	37	235	4.0	2,5,9
		31b	37	235	MIXED
		31c	39	237	4.4	2,5,9,18
		31d	39	237	LOST: mixed culture
		31e	39	237	Escherichia coli
		31f	39	237	LOST: mixed culture
		31g	39	237	LOST: mixed culture
		31h	39	237	LOST: mixed culture
		31i	46	244	4.5	2,5,9,17
		31j	58	256	4.0	2,5,9
		31k	64	297	Pseudomonas aeruginosa
32	16	32	4	240	5.0	2,5,9,p
34	107	34a	14	284	4.7	2,5,9,19
		34b	15	285	4.0	2,5,9
		34c	15	285	4.0	2,5,9
		34d	15	285	4.0	2,5,9
		34e	26	296	4.8	2,5,9,20
		34f	27	297	4.9	2,5,9,28
38	96	38	39	298	LOST
39	9	39	4	308	6.1	2,5,9,16,23
40	53	40a	11	334	6.0	2,5,9,16
		40b	13	336	6.0	2,5,9,16
43	60	43	29	383	6.0	2,5,9,16
44	15	44a	8	390	6.0	2,5,9,16
		44b	9	391	6.0	2,5,9,16
		44c	11	391	6.2	2,5,9,16,24
		44e	11	393	6.0	2,5,9,16
		44f	11	393	6.0	2,5,9,16
Ward 1 post-patient 44		E1		397	6.0	2,5,9,16
49	49	49a	21	406	6.0	2,5,9,16
		49b	33	418	5.0	2,5,9,p
50	50	50	14	437	6.0	2,5,9,16
51	96	51	14	440	6.0	2,5,9,16
52	24	52	13	495	6.0	2,5,9,16
53	26	53	6	506	4.11	2,5,9,21,p
54	37	54	30	507	6.0	2,5,9,16
55	47	55	25	510	6.0	2,5,9,16
Burns Unit shower head post-patient 55		E2		532	5.0	2,5,9,p
Burns Unit shower chair post-patient 55		E3		532	5.0	2,5,9,p
Burns Unit patient chair post-patient 55		E4		532	5.0	2,5,9,p
57	12	57	5	533	6.0	2,5,9,16
Touch screen burns theatre post-patient 57		E5		538	7.0	2,5,9,16,26,29
Anaesthetic machine burns theatre post-patient 57		E6		538	7.0	2,5,9,16,26,29
Pat Slide burns theatre post-patient 57		E7		538	6.4	2,5,9,16,26
Stool burns theatre post-patient 57		E8		538	6.4	2,5,9,16,26
Scissors burns theatre post-patient 57		E9		538	6.5	2,5,9,16,27
ECG leads burns theatre post-patient 57		E10		538	7.0	2,5,9,16,26,29
58	72	58	6	535	6.3	2,5,9,16,25
59	29	59	9	538	7.1	2,5,9,16,26,29,30,p
60	36	60	19	538	5.0	2,5,9,p
61	15	61	9	542	7.0	2,5,9,16,26,29
62	27	62	4	543	7.0	2,5,9,16,26,29
63	29	63	15	544	7.2	2,5,9,16,26,29,31
64	8	64	4	554	6.0	2,5,9,16
65	15	65	2	556	6.0	2,5,9,16

Patients were assigned to the outbreak if an initial isolate was shown by PFGE to belong to pulsotype 27. For three patients (15, 28, 38), no MDR-Aci isolates were available for genome sequencing.

*Isolate 29 was obtained after discharge from hospital from a sample provided by a general practitioner (GP).