Table 2.

Mean, Standard Deviation, Median, and Range of Zone Diameters (mm) for Essential Oils Against Gram-Positive Clinical Isolates

Species (n)OreganoThymeCinnamon BarkLemongrassManukaCloveTea TreeThievesVanco
MRSA (10)
Mean (SD)23.6 (0.84)26.8 (1.69)29.7 (0.82)29.2 (2.04)19.7 (1.34)12.8 (0.63)9.4 (0.52)18.8 (1.81)17.8 (0.42)
Median, range23, 226, 530, 329, 520, 413, 29, 118, 118, 1
MSSA (10)
Mean (SD)26.6 (2.21)29.7 (1.77)30.2 (2.78)31.4 (6.40)18.8 (1.62)13.4 (1.35)8.9 (2.42)19.5 (2.72)18.2 (3.05)
Median, range26, 730, 629, 730, 2018, 513, 58.5, 719, 819, 11
GAS
Mean (SD)18.3 (0.48)19.7 (1.57)13.1 (0.32)23.2 (3.33)14.0 (1.94)13.0 (0.47)6.9 (0.99)19.1 (1.60)21.0 (1.16)
Median, range18. 119.5, 413, 122, 1113, 213, 26.5, 218.5, 520.5, 3
Species (n)OreganoThymeCinnamon BarkLemongrassManukaCloveTea TreeThievesVanco
MRSA (10)
Mean (SD)23.6 (0.84)26.8 (1.69)29.7 (0.82)29.2 (2.04)19.7 (1.34)12.8 (0.63)9.4 (0.52)18.8 (1.81)17.8 (0.42)
Median, range23, 226, 530, 329, 520, 413, 29, 118, 118, 1
MSSA (10)
Mean (SD)26.6 (2.21)29.7 (1.77)30.2 (2.78)31.4 (6.40)18.8 (1.62)13.4 (1.35)8.9 (2.42)19.5 (2.72)18.2 (3.05)
Median, range26, 730, 629, 730, 2018, 513, 58.5, 719, 819, 11
GAS
Mean (SD)18.3 (0.48)19.7 (1.57)13.1 (0.32)23.2 (3.33)14.0 (1.94)13.0 (0.47)6.9 (0.99)19.1 (1.60)21.0 (1.16)
Median, range18. 119.5, 413, 122, 1113, 213, 26.5, 218.5, 520.5, 3

Abbreviations: GAS, group A streptococcus; Streptococcus pyogenes; MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-susceptible S aureus; SD, standard deviation.

Table 2.

Mean, Standard Deviation, Median, and Range of Zone Diameters (mm) for Essential Oils Against Gram-Positive Clinical Isolates

Species (n)OreganoThymeCinnamon BarkLemongrassManukaCloveTea TreeThievesVanco
MRSA (10)
Mean (SD)23.6 (0.84)26.8 (1.69)29.7 (0.82)29.2 (2.04)19.7 (1.34)12.8 (0.63)9.4 (0.52)18.8 (1.81)17.8 (0.42)
Median, range23, 226, 530, 329, 520, 413, 29, 118, 118, 1
MSSA (10)
Mean (SD)26.6 (2.21)29.7 (1.77)30.2 (2.78)31.4 (6.40)18.8 (1.62)13.4 (1.35)8.9 (2.42)19.5 (2.72)18.2 (3.05)
Median, range26, 730, 629, 730, 2018, 513, 58.5, 719, 819, 11
GAS
Mean (SD)18.3 (0.48)19.7 (1.57)13.1 (0.32)23.2 (3.33)14.0 (1.94)13.0 (0.47)6.9 (0.99)19.1 (1.60)21.0 (1.16)
Median, range18. 119.5, 413, 122, 1113, 213, 26.5, 218.5, 520.5, 3
Species (n)OreganoThymeCinnamon BarkLemongrassManukaCloveTea TreeThievesVanco
MRSA (10)
Mean (SD)23.6 (0.84)26.8 (1.69)29.7 (0.82)29.2 (2.04)19.7 (1.34)12.8 (0.63)9.4 (0.52)18.8 (1.81)17.8 (0.42)
Median, range23, 226, 530, 329, 520, 413, 29, 118, 118, 1
MSSA (10)
Mean (SD)26.6 (2.21)29.7 (1.77)30.2 (2.78)31.4 (6.40)18.8 (1.62)13.4 (1.35)8.9 (2.42)19.5 (2.72)18.2 (3.05)
Median, range26, 730, 629, 730, 2018, 513, 58.5, 719, 819, 11
GAS
Mean (SD)18.3 (0.48)19.7 (1.57)13.1 (0.32)23.2 (3.33)14.0 (1.94)13.0 (0.47)6.9 (0.99)19.1 (1.60)21.0 (1.16)
Median, range18. 119.5, 413, 122, 1113, 213, 26.5, 218.5, 520.5, 3

Abbreviations: GAS, group A streptococcus; Streptococcus pyogenes; MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-susceptible S aureus; SD, standard deviation.

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