Draft genome sequence of carbapenem-resistant Elizabethkingia anophelis strain BP8467 clinical isolate from India
JOURNAL OF GLOBAL ANTIMICROBIAL RESISTANCE
Authors: Amladi, Anushree; Lal, Binesh Y.; Jacob, Jobin John; Anandan, Shalini; Veeraraghavan, Balaji
Abstract
Objectives: Elizabethkingia spp. are Gram-negative, glucose-non-fermenting bacilli that are ubiquitous in natural environments such as soil, plant and water sources. Besides environmental sources, the bacterium can be found in hospital environments, particularly medical equipment and reagents. Here we report the draft genome sequence of an Elizabethkingia anophelis isolate from a blood culture. Methods: Genomic DNA of E. anophelis strain BP8467 was sequenced on an Ion Torrent PGM platform and the reads were assembled de novo using SPAdes v.5.0.0. The draft genome was annotated using the Prokaryotic Genome Annotation Pipeline (PGAP) v.4.9. Genetic determinants of antimicrobial resistance as well as virulence factors were identified using computational tools. Results: The assembled draft genome is 3 859 105 bp in length with a G + C content of 35.62% distributed in 30 contigs. Presence of the bla(BlaB) and bla(GOB-4) genes associated with resistance to carbapenems was identified. In addition, genes conferring resistance to other beta-lactams (bla(CME-1)), aminoglycosides [ant(6)-I] and chloramphenicol (catB) were also detected. Antimicrobial susceptibility testing showed that the isolate was susceptible to levofloxacin, trimethoprim/sulfamethoxazole, tetracycline and rifampicin. Conclusion: The presence of a multidrug-resistant isolate harbouring diverse antimicrobial resistance genes along with numerous virulence factors suggests the risk associated with Elizabethkingia spp. infections. This genome analysis provides insights into the antimicrobial resistance and pathogenicity mechanisms of multidrug-resistant E. anophelis that can help in the management of Elizabethkingia spp. infections in the future. (c) 2020 The Authors. Published by Elsevier Ltd on behalf of International Society for Antimicrobial Chemotherapy. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
A rare case of Whipple's disease with endocarditis in a patient with dextrocardia
SAGE OPEN MEDICAL CASE REPORTS
Authors: Sullivan, Abigayle; Shrestha, Pragya; Basnet, Sijan; Herb, Ronald; Zagorski, Emily
Abstract
We report a case of an elderly Caucasian male with past medical history of dextrocardia with situs inversus totalis, polymyalgia rheumatica, history of cryptogenic stroke, and severe mitral regurgitation with mitral valve prolapse, who presented with acute heart failure symptoms, including severe dyspnea on exertion and worsening lower extremity edema in the setting of immunosuppression with steroids for a year-old diagnosis of polymyalgia rheumatica. One month prior to this presentation, the patient suffered a transient ischemic attack and during the workup, his transthoracic echocardiography showed myxomatous degeneration of posterior mitral leaflet, partially flail, with severe mitral regurgitation, which required mitral valve replacement. Genome sequencing of mitral valve anterior leaflet pathology detectedTropheryma whippleias a causal agent of culture-negative endocarditis. The patient was treated with 6 weeks of ceftriaxone and ampicillin-sulbactam and further continued trimethoprim-sulfamethoxazole for 1 year. He continued antibiotic treatment with resolution of shortness of breath along with arthralgia.