Laboratory of Bacteriology, Hellenic Pasteur Institute, Athens, Greece.
Department of Clinical Microbiology, Thriassio General Hospital, Elefsina, Greece.
Euro Surveill. 2020 Jan;25(2). doi: 10.2807/1560-7917.ES.2020.25.2.1900766.
Two ceftazidime-avibactam (CAZ-AVI)-resistant carbapenemase (KPC)-positive strains, including one pandrug resistant, were isolated in 2019 from two Greek hospitals. The strains were sequence types (ST)s 258 and 147 and both harboured similar self-transmissible IncA/C2 plasmids encoding a novel Lys234Arg variant of the Vietnamese extended-spectrum β-lactamase (VEB)-1, not inhibited by AVI (VEB-25). Conjugal transfer of VEB-25-encoding plasmids to yielded CAZ-AVI-resistant clones, supporting that VEB-25 is directly linked to the derived phenotype.
2019 年,从希腊的两家医院中分离出两株耐头孢他啶-阿维巴坦(CAZ-AVI)的碳青霉烯酶(KPC)阳性菌株,其中一株为泛耐药菌株。这两株菌的序列类型(ST)分别为 258 和 147,均携带相似的可自我传播的 IncA/C2 质粒,可编码一种新型越南超广谱β-内酰胺酶(VEB)-1 的 Lys234Arg 变异体,该变异体不受 AVI(VEB-25)抑制。VEB-25 编码质粒向 的接合转移产生了对 CAZ-AVI 耐药的克隆,这表明 VEB-25 与衍生的表型直接相关。