Table 1.

Antimicrobial testing of antibiotics (A), AV-PVP-I₂ (+), AV-PVP-I₂-NaI (++), and dilutions. ZOI (mm) against microbial strains by disc diffusion assay as dilution series.

Strain	Antibiotic	A	1+	2+	3+	4+	1++	2++	3++	4++
S. pneumoniae ATCC 49619	G	21	14	12	10	0	13	0	0	0
S. aureus ATCC 25923	G	28	25	20	19	8	20	13	11	0
S. pyogenes ATCC 19615	C	25	16	10	0	0	10	0	0	0
E. faecalis ATCC 29212	CTX	25	17	12	9	0	0	0	0	0
B. subtilis WDCM 00003	S	20	22	17	10	0	16	11	8	0
P. mirabilis ATCC 29906	G	35	0	0	0	0	0	0	0	0
P. aeruginosa WDCM 00026	CTX	20	13	0	0	0	9	8	0	0
E. coli WDCM 00013	G	23	18	13	11	0	12	10	8	0
K. pneumoniae WDCM 00097	CTX	35	23	14	11	0	11	8	0	0
C. albicans WDCM 00054	NY	16	56	20	17	11	35	28	25	17 **

Disc diffusion studies (6 mm disc impregnated with 2 mL of 50 µg/mL (1), 2 mL of 25 µg/mL (2) and 2 mL of 12.5 µg/mL (3), and 2 mL of 6 µg/mL (4) of compounds AV-PVP-I₂ (+) and AV-PVP-I₂-NaI (++)). G Gentamicin (30 µg/disc). CTX (Cefotaxime) (30 µg/disc). NY (Nystatin) (100 IU). C Chloramphenicol (10 µg/disc). Streptomycin (10 µg/disc) Grey shaded area represents Gram-negative bacteria. 0 = Resistant. No statistically significant differences (p > 0.05) between row-based values through Pearson correlation. ** Compound M4 was diluted to 3 µg/mL (5) and achieved ZOI = 9.