Research Article

Occurrence of Potential Bacterial Pathogens and Their Antimicrobial Susceptibility Patterns Isolated from Herbal Medicinal Products Sold in Different Markets of Gondar Town, Northwest Ethiopia

Table 6

Multidrug resistance patterns of bacterial isolates from herbal medicinal products sold in Gondar Town, Northwest Ethiopia, 2013.

Bacterial isolates Total (%)Number of antibiotics resistance patterns (%)
R5

Gram negatives98 (65.3)7 (7.1)9 (9.2)19 (19.4)22 (22.5)19 (19.4)22 (22.4)
 Enterobacter cloacae18 (18.4)0 (0)0 (0)4 (22.2)5 (27.7)5 (27.7)4 (22.2)
 Enterobacter aerogenes 4 (4)0 (0)0 (0)0 (0)2 (50)1 (25)1 (25)
 Shigella dysenteriae 13 (13.3)2 (15.4)1 (7.7)2 (15.4)2 (15.4)5 (38.5)1 (7.7)
 Klebsiella pneumonia 11 (11.2)0 (0)1 (9.1)3 (27.3)3 (27.3)0 (0)4 (36.4)
 Klebsiella ozaenae 4 (4)0 (0)1 (25)1 (25)0 (0)0 (0)2 (50)
 Escherichia coli10 (10.2)2 (20)1 (10)3 (30)1 (10)1 (10)2 (20)
 Providencia stuartii12 (12.2)1 (8.3)0 (0)1 (8.3)3 (25)4 (33.3)3 (25)
 Citrobacter spp.12 (12.2)1 (8.3)3 (25)2 (16.7)2 (16.7)3 (25)0 (0)
 Serratia 5 (5.1)1 (20)2 (40)1 (20)1 (20)0 (0)0 (0)
 Salmonella spp.3 (3)0 (0)0 (0)1 (33.3)2 (66.7)0 (0)0 (0)
 Pseudomonas aeruginosa 2 (2)0 (0)0 (0)0 (0)0 (0)0 (0)2 (100)
 Acinetobacter4 (4)0 (0)0 (0)0 (0)1 (25)0 (0)3 (75)
Gram positives52 (34.7)7 (13.5)2 (3.8)4 (7.7)12 (23.1)9 (17.3)18 (34.6)
 Bacillus spp.31 (59.6)4 (12.9)1 (3.2)4 (12.9)4 (12.9)7 (22.6)11 (35.5)
 Staphylococcus aureus 10 (19.2)1 (10)0 (0)0 (0)5 (50)1 (10)3 (30)
 Staphylococcus epidermidis5 (9.6)1 (20)0 (0)0 (0)2 (40)0 (0)2 (40)
 Staphylococcus saprophyticus2 (3.8)0 (0)1 (50)0 (0)0 (0)1 (50)0 (0)
 Streptococcus pyogenes4 (7.7)1 (25)0 (0)0 (0)1 (25)0 (0)2 (50)

Total MDR (G− and G+)150 (100)14 (9.3)11 (7.3)23 (15.3)34 (22.7)28 (18.7)40 (26.7)

MDR: multiple drug resistance (resistant to 2 or more antibiotics), : no antibiotic resistance, : resistance to one, : resistance to two, : resistance to three, : resistance to four, and ≥R5: resistance to five and more drugs.