Investigation on a suspected outbreak of carbapenem-resistant Acinetobacter baumannii nosocomial infection in an intensive care unit
Journal Title: Shanghai Journal of Preventive Medicine - Year 2024, Vol 36, Issue 5
Abstract
Objective To investigate a suspected outbreak of carbapenem-resistant Acinetobacter baumannii （CRAB） nosocomial infection in an intensive care unit （ICU） and provide scientific evidence for prevention and control of multi-drug resistant nosocomial infection.Methods Clinical and epidemiological data of 4 patients with CRAB infection were retrospectively investigated in the ICU of Renji Hospital in November 2021. Environmental hygiene monitoring and multilocus sequence typing （MLST） were conducted and intervention measures were taken.Results A total of 4 cases with CRAB infection were identified， among which 1 case was determined to be community-acquired and 3 cases were hospital-acquired. The isolated strains shared the same drug resistance， and were all classified into ST368 type. In the surface and hand samples （n=40）， 2 CRAB strains were detected in the air filter beside the bed of the first case， with a detection rate of 5%. After adopting comprehensive prevention and control strategies， including environmental cleaning and disinfection， hand hygiene， staff management and training， and supervision， no similar case with CRAB infection was found.Conclusion This suspected outbreak of CRAB nosocomial infection may be induced by inadequate environmental cleaning and disinfection， and inadequate implementation of hand hygiene. Timely identification， investigation， and targeted measures remain crucial to effective control of possible nosocomial infection.
Authors and Affiliations
HUANG Mei,GUI Xiaobo,YANG Ya,LU Feng,QIN Juanxiu,LI Yan,ZHANG Shuyi,ZHOU Wenqin,FU Xiaofang,BAN Haiqun,
Keywords
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