Comparison of PCR ribotyping and multilocus variable-number tandem-repeat analysis (MLVA) for improved detection of Clostridium difficile

Table 1 Characteristics of 47 C. difficile VNTR loci

Locus	Repeat (bp)	C. difficile630^a		P142
		Location	Copy number	No. alleles	Simpson's allelic diversity	Typeability (%)
C6cd^b	6	3239736-855	16	32	0.96	98
CDR4^b	6	755721-942	37	38	0.96	97
CDR49^b	7	3688632-750	17	22	0.94	99
CDR60^{b, c}	17	677132-413	265	20	0.94	92
CDR9^b	8	664660-747	6	20	0.93	83
CDR5^b	8	692929-3017	11	13	0.9	70
CDR48^b	7	167124-172	7	10	0.84	99
cd7^c	7	941339-465	128	10	0.83	97
cd5^c	17-19	828221-372	150	15	0.8	96
cd6^c	42	917090-173	84	10	0.78	99
CDR59^b,c	11	771338-403	167	11	0.76	99
cd25^c	12	3748418-65	57	6	0.71	98
F3cd ^b	3	1954915-935	7	5	0.7	100
H9cd ^b	3	4116072-110	13	7	0.62	100
cd12	12	1578610-45	3	4	0.61	100
cd22	15	3035898-942	2	5	0.58	99
cd20	17	2913124-157	2	3	0.56	79
cd19	18	2724077-166	5	4	0.56	100
cd27	15	1662349-63	2	5	0.55	100
cd31	17	4261467-517	3	3	0.54	100
cd10	6	1366501-24	4	2	0.5	100
cd16	11	2004175-85	1	2	0.5	98
cd41	18	857052-105	3	3	0.49	100
cd29	16	2025983-6014	2	2	0.49	100
cd8	8	1216864-79	2	5	0.42	77
cd23	21	3157267-350	4	5	0.41	100
cd17	8	2062186-201	2	2	0.35	100
cd30	15	3095446-75	2	2	0.33	100
cd15	5	1909382-6	2	3	0.32	100
cd14	19	1908272-309	2	2	0.3	100
cd39	5	1021318	0	9	0.28	100
cd4	15	667998-8057	3	3	0.27	100
cd21	6	2982766-787	8	3	0.27	100
cd2	14	463809-36	2	2	0.25	100
cd40	5	209313-27	3	3	0.22	100
cd9	3	1268365-77	4	2	0.22	100
cd42	4	1818181-92	3	4	0.21	99
cd28	8	1821467-82	2	4	0.2	79
cd18	4	2611912-27	4	4	0.16	100
cd33	24	1563736-83	2	2	0.12	100
cd13	23	1833582-673	4	4	0.11	100
cd36	3	4231072-84	2	3	0.11	100
cd24	10	3621903-22	2	2	0.09	100
cd32	6	339734-45	2	2	0.06	100
cd35	6	3925113-24	2	2	0.03	96
cd34	6	2033446-57	2	2	0.03	99
cd38	7	811821-34	2	2	0.03	100

ISSN: 1471-2180