Gram negative organisms are main causes of NI (79.8%): Klebsiella (17.1%), Acinetobacter (16.9%), P aeruginosa (16.9%), Enterobacter spp (13.7%), E coli (11.3%); Gram positive bacteria account for 17.0%: S aureus (8.8%), Coagulase negative Staphylococcus (7.3%); Candida is 3.2%.
Nguyên nhân gây NKBV chủ yếu là vi khuẩn gram âm (79.8%): Klebsiella (17.1%), Acinetobacter (16.9%), P. aeruginosa (16.9%), Enterobacter (13.7%), E. coli (11.3%); vi khuẩn gram dương (17.0%): S. aureus (8.8%), Staphylococcus coagulase âm (7.3%); nấm Candida (3.2%).