To investigate the influencing factors and transmission route of hospital infection agglomeration cases caused by multiple drug resistant Acinetobacter baumannii (MDR-AB) in Intensive Care Unit (ICU), and to avoid the occurrence of hospital infection outbreak.

The clinical data and epidemiological investigation of 3 cases with MDR-AB infection in ICU of Pukou Branch of Jiangsu Provincial People’s Hospital in January 2017 were investigated and analyzed by field investigation method.

From January 7 to January 22, 2017, there were 3 patients of respiratory infection with sputum culture of MDR-AB positive. Instrumentation, equipment and articles of 3 patients were specially assigned to exclude the possibility of bed communication and lack of evidence of cross-infection in hospital. Community infection was clear and fulminant hospital infection were excluded.

This is an aggregated infection caused by MDR-AB, which is effectively controlled by application of effective disinfection and isolation measures in time.