engleski

Acinetobacter baumannii recovered from technosol at a dump site

Data on the presence of Acinetobacter baumannii in natural environment influenced by human solid waste are very scarce. There is only one literature report on the incidental finding of one multi-drug resistant (MDR) A. baumannii in paleosol influenced by illegally disposed solid waste. Here we report the finding of three isolates of A. baumannii recovered from technosol at dump site. The dump site is situated above City of Rijeka in Croatia in a karst pit. At this dump site the hazardous industrial waste was continuously disposed from 1956-1990 and further was periodically used as an illegal dump site. Three presumptive colonies were isolated from plates inoculated with 0.01-1g of the surface part of technosol collected at the edge of dump. MALDI-TOF MS score values ranged from 2.000-2.086 for A. baumannii. All three isolates were MDR. They shared the resistance to carbapenems, fluoroquinolones, ticarcillin/clavulanic acid and piperacillin/tazobactam, and resistance or intermediate resistance to amikacin and ampicillin/sulbactam. One isolate was resistant to trimethoprim/sulfamethoxazole and intermediate resistant to minocycline. All three isolates were sensitive to tobramycin, gentamicin and colistin. The proper management and disposal of human solid waste is mandatory to prevent the spread of MDR A. baumannii in nature.

environment, public health, dump site, technosol

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