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Table 3 In vitro anti-staphylococcal activity of Guizotia schimperi extracts and of antibiotics oxacillin and tetracycline

From: In vitro antimicrobial activity of plants used in traditional medicine in Gurage and Silti Zones, south central Ethiopia

 

MIC (μg/ml)

Standard strains

Oxacillin

Tetracycline

Extract

ATCC 12228

0.5

64

128

ATCC 29213

0.5

0.5

128

ATCC 33591

512

64

128

ATCC 33592

512

128

128

ATCC 43300

16

0.25

256

ATCC BAA 976

16

0.25

128

Clinical isolates

 SA1

16

0.25

128

 SA2

64

16

256

 SA3

512

32

128

 SA4

16

0.25

128

 SA5

256

0.25

256

 SA6

0.5

8

256

 SA7

1

16

128

 SA8

16

0.125

128

 SA9

128

64

256

 SA10

0.5

0.25

128

  1. SA1-SA10 = resistant if MIC ≥ 4 μg/ml for oxacillin, ≥ 16 μg/ml for tetracycline [47]
  2. MIC Minimum inhibitory concentration, ATCC American type culture collection, SA Staphylococcus aureus