Evaluation of the effects of sound exposure and low field electromagnetism on growth and antibiotics susceptibility of some microorganisms

Bulletin of the National Research Centre

Table 5 Antibiotics susceptibility profile of selected Gram-negative bacteria as read in mean diameter of zones of inhibition (mm) after treatment to electromagnetic flux at 5mT intensity compared with control

Bacteria culture	CAZ	CIP	TET	IMP	AMP
S. marcescens ATCC14756	a) 26 ± 1.4 b) 15 ± 0.1	a) 28 ± 2.8 b) 29 ± 0.1	a) R b) R	a) 26 ± 1.4 b) 21 ± 2.8	a) R b) R
P. aeruginosa ATCC9027	a) 26 ± 1.4 b) 16 ± 0	a) 34 ± 3.5 b) 26 ± 8.5	a) R b) R	a) 26 ± 2.8 b) 26 ± 0	a) R b) R
G. oxydans ATCC19357	a) 27 ± 2.8 b) 18 ± 1.4	a) 26 ± 0.7 b) 23 ± 3.5	a) R b) 18 ± 1.4	a) 26 ± 1.4 b) 28 ± 3.5	a) 23 ± 0.7 b) R
R. sphaeroides ATCC17023	a) 24 ± 0.7 b) R	a) 24 ± 0.7 b) 24 ± 0	a) R b) R	a) R b) 30 ± 0.7	a) R b) R
C. freundii ATCC33128	a) 14 ± 0.7 b) R	a) 26 ± 0.7 b) 24 ± 0.7	a) 25 ± 0 b) R	a) 29 ± 4.2 b) R	a) 30 ± 2.1 b) R
Y. pestis ATCC11953	a) R b) 19 ± 1.4	a) 25 ± 0 b) 19 ± 1.4	a) R b) R	a) 23 ± 1.4 b) 21 ± 1.4	a) 15 ± 0 b) R
K. pneumoniae ATCC25955	a) 26 ± 1.4 b) 20 ± 0	a) 31 ± 2.1 b) 19 ± 1.4	a) R b) R	a) 22 ± 2.8 b) 23 ± 1.4	a) 24 ± 0.7 b) R
A. aceti ATCC15973	a) 9 ± 4.2 b) R	a) 21 ± 9.9 b) 16 ± 0.7	a) 13 ± 4.2 b) R	a) 17 ± 1.4 b) 23 ± 2.8	a) 16 ± 4.2 b) 18 ± 0.7
E. coli ATCC25922	a) 29 ± 1.4 b) R	a) 22 ± 1.4 b) 18 ± 0.7	a) 19 ± 0 b) 14 ± 2.1	a) 33 ± 4.2 b) R	a) 26 ± 1.4 b) R

a) —Control b) —15 min R—Resistance CAZ—Ceftazidime CIP—Ciprofloxacin TET—Tetracycline IMP—Imipenem AMP—Ampicillin *Data are mean of replicate ± Standard deviation