Genetic Diversity and Virulence Factors of S. aureus Isolated from Food, Humans, and Animals

Table 6

Virulence factors and antibiotic resistance in MSSA and MRSA strains.

	MSSA	MRSA
Virulence factor
0–2 virulence genes	47 (83.9)	3 (37.5)	0.003
≥3 virulence genes	9 (16)	5 (62.5)
Antibiotics
Clindamycin	9 (16)	2 (25)	0.617
Ciprofloxacin	5 (8.9)	3 (37.5)	0.054
Erythromycin	24 (42.9)	6 (75)	0.133
Rifampicin	5 (8.9)	1 (12.5)	0.567
Tetracycline	6 (10.7)	2 (25)	0.260

Calculated from Fisher’s exact test. MSSA, Staphylococcus aureus sensitive to methicillin. MRSA, Staphylococcus aureus resistant to methicillin. Values of were considered statistically significant and are marked in the table.