Efficacy of systemically administered polymyxins in mouse burn wound infection caused by multidrug-resistant Gram-negative pathogens: A proof-of-concept study [PublishAheadOfPrint]

The efficacy of subcutaneously administered polymyxins against burn wound infections caused by Pseudomonas aeruginosa, Acinetobacter baumannii, and Klebsiella pneumoniae was examined in a murine infection model. Subcutaneously administered colistin and polymyxin B achieved a >2-log₁₀ reduction in the bacterial load for P. aeruginosa and A. baumannii infections, while wound infections by K. pneumoniae were less responsive (<1-log₁₀ reduction). This study highlights the potential therapeutic benefits of parenteral polymyxins for treating burn wound infections.

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