Drug resistance of Acinetobacter ssp. in patients with pneumonia in a Brazilian Pre-Amazon region during the pre-pandemic and pandemic periods of COVID-19
Abstract
Antimicrobial resistance is a global public health threat that has been impacted by the COVID-19 pandemic. The aim of this study was to evaluate the resistance of Acinetobacter spp. isolated from patients with pneumonia in a Brazilian Pre-Amazon region during the pre-pandemic and pandemic periods of COVID-19. Bacterial strains were obtained from tracheal aspiration, sputum and bronchoalveolar lavage for diagnosis and phenotypic characterization. MALD-TOF was used to identify strains. The automated Phoenix and VITEK® 2 Compact system and the disc diffusion method were performed to determine the antimicrobial susceptibility profile. Were analyzed a total of 41,590 samples from patients admitted to hospitals of a Brazilian Pre-Amazon region, from January 2019 to December 2021. Of these, 162 isolates of Acinetobacter spp. were from the pre-pandemic period and 308 from the pandemic COVID-19. A. baumannii was the most prevalent species. Among the samples, 52% were male patients, aged over 60 years, hospitalized in intensive care units. Acinetobacter spp. showed higher rates of resistance to cefepime (79.1%), levofloxacin (77.8%), and ceftazidime (77%) in the pre-pandemic period and during the pandemic to piperacillin (72.4%), imipenem (71.6%) and ciprofloxacin (71.8%). Taken together, the data showed that A. baumannii was the most prevalent species among Acinetobacter spp., being more frequent among elderly patients admitted to the ICU. The strains presented high resistance to…
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