Molecular Assessment of Resistance to Clarithromycin in Helicobacter pylori Strains Isolated from Patients with Dyspepsia by Fluorescent In Situ Hybridization in the Center of Iran

Table 2

Association between clarithromycin MICs and point mutations in 23S rRNA gene H. pylori.

Type of mutation	Number (%) of isolates		Total
	Low resistance no. (%)	High resistance no. (%)
A2143G	4 (36.4%)	9 (90%)	13 (62%)
A2144G	5 (45.4%)	1 (10%)	6 (28.6%)
Undetermined	2 (18.2%)		2 (9.5%)

MICs: minimum inhibitory concentrations.