Clinical and Genomic Characterization of Carbapenem-Resistant with Concurrent Production of NDM and OXA-48-like Carbapenemases in Southern California, 2016-2022.

The global emergence of carbapenem-resistant (CRKP) has become a critical public healthcare concern due to treatment challenges and high mortality. In recent years, there has been an increase in cases of CRKP co-producing New Delhi metallo-β-lactamases (NDM) and oxacillinase 48 (OXA-48)-like carbapenemases in the US. The aim of this study was to correlate the clinical and genomic characteristics of CRKP co-producing NDM and OXA-48-like carbapenemases isolated from patients in Southern California since 2016.

Successful autologous hematopoietic stem cell transplants using Salmonella positive products collected from asymptomatic donors.

Background: Bacterial contamination of hematopoietic stem cell (HSC) products is most commonly due to normal skin flora. Salmonella in HSC products is rare, and to our knowledge safe administration of an autologous HSC product containing Salmonella has not been reported.

Study Design And Methods: We describe two patients undergoing autologous HSC transplant: peripheral blood HSC collection was performed by leukapheresis, and samples were cultured according to standard institutional protocol.

Surveillance diagnostic algorithm using real-time PCR assay and strain typing method development to assist with the control of amid COVID-19 pandemic.

continues to be a global threat for infection and transmission in hospitals and long-term care facilities. The emergence of SARS-CoV-2 has rerouted attention and resources away from this silent pandemic to the frontlines of the ongoing COVID-19 disease. Cases of continue to rise, and clinical laboratories need a contingency plan to prevent a possible outbreak amid the COVID-19 pandemic.

Investigation of Phylogeny and Drug Resistance Mechanisms of Isolated from Blood and Lower Respiratory Tract.

species are environmental bacteria associated with opportunistic infections in vulnerable populations. Traditionally, was considered the predominant pathogenic species. However, commercial identification systems have routinely misidentified as , leading to a mischaracterization of clinical strains and an underestimation of the role of in human disease.

Coinfections of Two Strains of NDM-1- and OXA-232-Coproducing Klebsiella pneumoniae in a Kidney Transplant Patient.

We report here a fatal case of carbapenem-resistant (CRKP) infections in a renal transplant patient without a travel history in the prior year, from whom 2 genetically different CRKP (sequence type 14 [ST14] and ST2497) strains carrying the same plasmids and antimicrobial resistance genes, including , , , , and (D), were isolated from blood and the abdominal cavity. The isolates were susceptible to colistin, tigecycline, eravacycline, and cefiderocol, which was used to treat the CRKP in combination with ceftazidime-avibactam and polymyxin B and resulted in bacterial clearance. Despite the aggressive treatment, the patient died of ischemic colitis and multiorgan failure.