Nasal Carriage of Methicillin-Resistant Staphylococcus aureus among Health Care Workers in Tertiary and Regional Hospitals in Dar es Salam, Tanzania

Table 3

Resistance pattern among MRSA and MSSA isolates.

Antimicrobial drug	MRSA (), n (%)	MSSA (), n (%)	value
Penicillin	NA	88 (89.8)
Trimethoprim-sulphamethoxazole	22 (46.8)	5 (9.6)	≤0.001
Ciprofloxacin	42 (71.2)	1 (1.0)	≤0.001
Gentamicin	49 (83.1)	4 (4.1)	≤0.001
Kanamycin	41 (83.7)	6 (6.4)	≤0.001
Clindamycin	8 (13.8)	6 (6.1)	0.1
Erythromycin	46 (78.0)	41 (41.8)	≤0.001
Linezolid	0 (0)	0 (0)
Mupirocin	6 (10.2)	3 (3.1)	0.06

Antimicrobial susceptibility testing was performed to only 98 S. aureus isolates. NA, not applicable. MRSA isolates are considered resistant to other beta-lactam agents including penicillin; hence, the testing was not done.