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Table 3 Multidrug resistant (MDR) pattern of isolated bacteria from medical equipments and inanimate surfaces at Ayder Specialized Comprehensive Hospital October 2016 to June 2017

From: Bacterial contamination and antimicrobial susceptibility patterns of intensive care units medical equipment and inanimate surfaces at Ayder Comprehensive Specialized Hospital, Mekelle, Northern Ethiopia

Bacterial species Resisted antimicrobial agents No. bacteria (%) for MDR Bacterial species Resisted antimicrobial agents No. bacteria (%) for MDR
No. Type No. Type
Coagulase negative staphylococcus R4 E, AMC, CIP, AMP 1 (1.7) S. aureus R3 CIP, GEN, AMP 1 (2.2)
R5 E, P, AMC, C, AMP 3 (5) E, AMP, CX 1 (2.2)
p, AMC, C, GEN, AMP 2 (3.3) R4 E, P, AMP, CX 4 (8.7)
p, AMC, CIP, TE, AMP 2 (3.3) AMC, C, AMP, CX 1 (2.2)
E, AMC, CIP, TE, AMP 1 (1.7) R5 P, AMC, C, AMP, CX 1 (2.2)
E, P, CIP, C, AMP 1 (1.7) E, P, AMC, AMP, CX 3 (6.5)
R6 E, P, AMC, C, CTR, AMP 2 (3.3) P, AMC, CTR, AMP, CX 1 (2.2)
E, P, AMC, CTR, GEN, AMP 1 (1.7) R6 P, CIP, CTR, C, AMP, CX 1 (2.2)
E, P, AMC, CTR, C, AMP 1 (1.7) E, P, AMC, CTR, AMP, CX 1 (2.2)
R7 E, P, AMC, CTR, TE, C, AMP 1 (1.7) E, P, AMC, C, AMP, CX 2 (4.3)
E, P, AMC, CIP, CTR, GEN, AMP 1 (1.7) E, AMC, C, GEN, AMP, CX 1 (2.2)
R9 E, P, AMC, CIP, CTR, TE, C, GEN, AMP 2 (3.3) R7 E, P, AMC, CTR, C, AMP, CX 2 (4.3)
Total   17 (28.3) p, AMC, CIP, CTR, GEN, AMP, CX 3 (6.5)
E. coli R3 CTR, CTX, AK 1 (9.1) E, P, CIP, CTR, C, AMP, CX 1 (2.2)
R5 AMC, CTR, AMP, CTX, NA 2 (18.2) E, P, AMC, TE, C, AMP, CX 1 (2.2)
AMC, CTR, AMP, CTX, AK 1 (9.1) R8 E, P, AMC, CIP, TE, GEN, AMP, CX 1 (2.2)
AMC, CTR, C, AMP, CTX 1 (9.1) R9 E, P, AMC, CIP, CTR, TE, GEN, AMP, CX 2 (4.3)
R6 AMC , CIP, CTR, C, CTX, NA 1 (9.1) R10 E, P, AMC, CIP, CTR, TE, C, GEN, AMP, CX 1 (2.2)
R7 AMC, CTR, TE, C, AMP, CTX, NA 1 (9.1) Total   27 (58.7)
R9 AMC, CIP, CTR, TE, C, GEN, MP, CTX, NA 1 (9.1) C. freundii R4 AMC, AMP, NA, AK 3 (20)
Total   8 (72.7) Total   3 (20)
  1. P: penicillin; CX: cefoxitin; E: erythromycin; AMC: amoxicillin–clavulanic acid; AMP: ampicillin; CTR: ceftriaxone; CIP: ciprofloxacin; C: chloramphenicol; GEN: gentamicin; TE: tetracycline; AK: amikacin; CTX: cefotaxime; NA: nalidixic acid, R3; R4; R5; R6; R7; R8; R9; R10; R11; resistant to (3, 4, 5, 6, 7, 8, 9, 10, 11 antimicrobial agents), respectively, MDR; non-susceptible to ≥ 1 agent in ≥ 3 antimicrobial categories