Volta

Aircraft lavatory wastewater surveillance for movement of antimicrobial resistance genes: a proof-of-concept study

ABSTRACT Long-haul flight aircraft wastewater may serve as a representative microbial footprint, often of mixed country origin, offering valuable insight into the movement of pathogens and antimicrobial resistance (AMR) on a global scale. Herein, we present a proof-of-concept for aircraft-based surveillance of AMR by investigating lavatory wastewater samples from 44 repatriation flights to Australia departing from nine countries. Profiles of pathogens including ESKAPE pathogens ( Salmonella spp., Mycobacterium spp., Enterococcus faecium , Staphylococcus aureus, Klebsiella pneumoniae , Acinetobacter baumannii , and Pseudomonas aeruginosa ) and antibiotic resistance genes (ARGs) ( aph(3’)-IIIa , bla NDM-1 , bla CTX_M-1 , bla KPC , ermB, qnrS, sul1, tetM, and vanA ) were investigated along with traditional fecal indicator bacteria ( Escherichia coli and …

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