Table 1.

Phenotypic resistance to clarithromycin and alleles at nucleotide positions 2146 (formerly 2142) and 2147 (formerly 2143).

Strain No.	Phenotype	Allele at 2146	Allele at 2147	Strain No.	Phenotype	Allele at 2146	Allele at 2147
1	Susceptible	A	A	24	Susceptible	A	A
2	Susceptible	A	A	25	Resistant	A	G
3	Resistant	A	G	26	Resistant	A	G
4	Resistant	A	G	27	Resistant	A	G
5	Resistant	A	G	28	Resistant	A	G
6	Resistant	A	G	29	Resistant	A	G
7	Resistant	A	G	30	Susceptible	A	A
8	Resistant	A	G	31	Susceptible	A	A
9	Resistant	A	G	32	Resistant	G	A
10	Resistant	A	G	33	Resistant	G	A
11	Resistant	A	G	34	Susceptible	A	A
12	Resistant	A	G	35	Susceptible	A	A
13	Resistant	A	G	36	Resistant	A	G
14	Resistant	A	G	37	Resistant	A	G
15	Resistant	A	G	38	Resistant	A	G
16	Resistant	A	G	39	Resistant	A	G
17	Resistant	A	G	40	Resistant	A	G
18	Resistant	A	G	41	Resistant	A	G
19	Resistant	A	G	42	Resistant	A	G
20	Resistant	A	G	43	Resistant	A	G
21	Resistant	A	G	44	Resistant	A	G
22	Resistant	A	G	45	Resistant	A	G
23	Susceptible	A	A	46	Resistant	A	G