Hemostatic GuardaCare PRO and ChitoGauze PRO offer log reduction data demonstrating the antibacterial effectiveness within the dressings against 26 different strains of bacteria, including MRSA, VRE, C. difficile and A. baumannii.

In testing, GuardaCare and ChitoGauze were exposed to a wide breadth of microorganisms and reduced most organisms by at least 10,000 units (10or 4 log reduction). The data below demonstrates the antibacterial effectiveness within the dressing of both GuardaCare PRO and ChitoGauze PRO.

MRSA | chitosan Tricol Biomedical

 © Dennis Kunkel Microscopy, Inc.


MicroorganismGram StainLog Reduction
GuardaCare PRO
Log Reduction
ChitoGauze PRO
Staphylococcus aureus (MRSA) ATCC 33591+>5.0>4.1
Staphylococcus aureus (MRSA) ATCC BAA-1556+>5.1>4.2
Staphylococcus epidermidis ATCC 12228+>4.4>4.2
Pseudomonas aeruginosa ATCC 9027>5.1>4.1
Enterococcus faecalis (VRE) ATCC 51299+>5.4>4.0
Acinetobacter baumanii ATCC 15308>5.2>4.4
Citrobacter freundii ATCC 8090>5.2>4.3
Enterobacter cloacae ATCC 13047>4.9>4.1
Streptococcus mutans ATCC 25175+>4.7>4.0
Streptococcus pneumoniae ATCC 10015+>5.4>5.1
Escherichia coli ATCC 8739>4.9>4.1
Klebsiella pneumoniae ATCC 4352>5.2>4.0
Streptococcus pyogenes ATCC 19615+5.0>4.2
Salmonella choleraesius ATCC 10708>4.6>4.1
Stenotrophomonas maltophilia ATCC 12714>5.1>4.0
Citrobacter koseri ATCC 25408>4.7>4.1
Proteus mirabilis ATCC 4630>5.0>4.2
Proteus vulgaris ATCC 12454>4.6>4.3
Moraxella catarrhalis ATCC 8193>4.9>4.1
Clostridium difficile ATCC 9689+>5.0>4.0
Shigella species ATCC 11126>4.3>4.0
Micrococcus luteus ATCC 49732+>5.0>4.0
Vibrio cholerae ATCC 11558>4.0>4.1
Enterobacter aerogenes ATCC 13048>5.04.8
Enterococcus faecalis (VRE) ATCC 700802+>5.32.6
Serratia marcescens ATCC 13880>4.55.0
* Percent/log reduction refers to the percentage/log reduction in organisms at 24 hours vs. 0 hours exposure to the dressing.
Only single strains of most species mentioned have been studied. The clinical utility of these results is unknown.