Table 1.

Inhibition zone diameters (mm) recorder in agar-well diffusion assay using polyphenol-rich fractions from Sida alba L. and Co-trimoxazol

Microorganisms	Co-trimoxazol	Polyphenol
Shigella dysenteria	19.00 ± 1.73	22.66 ± 0.58
Shigella boydii	20.66 ± 0.58	21.33 ± 4.04
Shigella flexneri	19.00 ± 1.00	23.66 ± 4.93
Salmonella thyphi	nd	24.33 ± 1.15
Klebsiella pneumonia	nd	29.66 ± 1.53
Klebsiella arogenes	nd	14.00 ± 1.00
Escherichia coli	nd	29.00 ± 1.00
Enterococcus faecalis	21.00 ± 1.00	28.66 ± 1.53
Enterobacter aeruginosa	nd	22.00 ± 2.65
Proteus mirabilis	20.66 ± 1.53	24.66 ± 1.53

The results are the means of number of the colonies ± standard deviations. nd: no detected activity.