The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2

<i>Candida blankii</i> is a recently recognized human pathogen, with most cases of the infection being reported in the immunocompromised. We here describe the case of a critically ill elderly woman with COVID-19 who developed a <i>C. blankii</i> bloodstream infection from a f...

Full description

Bibliographic Details
Main Authors: Ryan Mirchin, Jonathan M. Czeresnia, Erika P. Orner, Sudha Chaturvedi, Kerry Murphy, Joshua D. Nosanchuk
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/8/2/166
_version_ 1797478939495497728
author Ryan Mirchin
Jonathan M. Czeresnia
Erika P. Orner
Sudha Chaturvedi
Kerry Murphy
Joshua D. Nosanchuk
author_facet Ryan Mirchin
Jonathan M. Czeresnia
Erika P. Orner
Sudha Chaturvedi
Kerry Murphy
Joshua D. Nosanchuk
author_sort Ryan Mirchin
collection DOAJ
description <i>Candida blankii</i> is a recently recognized human pathogen, with most cases of the infection being reported in the immunocompromised. We here describe the case of a critically ill elderly woman with COVID-19 who developed a <i>C. blankii</i> bloodstream infection from a femoral central venous catheter. <i>Aspergillus niger</i> was also isolated from her respiratory secretions. The patient was started on voriconazole for empiric coverage of both <i>A. niger</i>, and at that time, unidentified yeast was found in the blood. Fevers persisted, and the patient expired six days after the yeast was first isolated. Almost one month after her death, <i>C. blankii</i> was identified as the cause of fungemia by sequencing of the internal transcribed spacer (ITS) region of the ribosomal gene and BLAST searching against two databases (performed by a reference laboratory). The isolate demonstrated high minimum inhibitory concentrations (MICs) to azoles and low MICs to amphotericin B, similar to previously described isolates. Timely identification of <i>C. blankii</i> would have prompted different empiric antifungal choices and possibly changed the final outcome. Clinicians should be aware of the pathological potential of <i>C. blankii</i>, the challenges of correctly identifying the organism, and its susceptibility patterns to common antifungals. There is an urgent need to improve assays for <i>C. blankii</i> identification, which will aid in accurate and timely pathogen identification, and appropriate therapeutic management.
first_indexed 2024-03-09T21:38:45Z
format Article
id doaj.art-eb469719212b4b8c99ad2f4b334a3cce
institution Directory Open Access Journal
issn 2309-608X
language English
last_indexed 2024-03-09T21:38:45Z
publishDate 2022-02-01
publisher MDPI AG
record_format Article
series Journal of Fungi
spelling doaj.art-eb469719212b4b8c99ad2f4b334a3cce2023-11-23T20:37:51ZengMDPI AGJournal of Fungi2309-608X2022-02-018216610.3390/jof8020166The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2Ryan Mirchin0Jonathan M. Czeresnia1Erika P. Orner2Sudha Chaturvedi3Kerry Murphy4Joshua D. Nosanchuk5Department of Internal Medicine, New York Presbyterian—Queens, Flushing, NY 11355, USADepartment of Medicine, Division of Infectious Diseases, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10467, USADepartment of Pathology, Montefiore Medical Center, Bronx, NY 10467, USAWadsworth Center Mycology Laboratory, New York State Department of Health, Albany, NY 12208, USADepartment of Medicine, Division of Infectious Diseases, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10467, USADepartment of Medicine, Division of Infectious Diseases, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10467, USA<i>Candida blankii</i> is a recently recognized human pathogen, with most cases of the infection being reported in the immunocompromised. We here describe the case of a critically ill elderly woman with COVID-19 who developed a <i>C. blankii</i> bloodstream infection from a femoral central venous catheter. <i>Aspergillus niger</i> was also isolated from her respiratory secretions. The patient was started on voriconazole for empiric coverage of both <i>A. niger</i>, and at that time, unidentified yeast was found in the blood. Fevers persisted, and the patient expired six days after the yeast was first isolated. Almost one month after her death, <i>C. blankii</i> was identified as the cause of fungemia by sequencing of the internal transcribed spacer (ITS) region of the ribosomal gene and BLAST searching against two databases (performed by a reference laboratory). The isolate demonstrated high minimum inhibitory concentrations (MICs) to azoles and low MICs to amphotericin B, similar to previously described isolates. Timely identification of <i>C. blankii</i> would have prompted different empiric antifungal choices and possibly changed the final outcome. Clinicians should be aware of the pathological potential of <i>C. blankii</i>, the challenges of correctly identifying the organism, and its susceptibility patterns to common antifungals. There is an urgent need to improve assays for <i>C. blankii</i> identification, which will aid in accurate and timely pathogen identification, and appropriate therapeutic management.https://www.mdpi.com/2309-608X/8/2/166<i>Candida blankii</i>fungemiaCOVID-19
spellingShingle Ryan Mirchin
Jonathan M. Czeresnia
Erika P. Orner
Sudha Chaturvedi
Kerry Murphy
Joshua D. Nosanchuk
The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2
Journal of Fungi
<i>Candida blankii</i>
fungemia
COVID-19
title The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2
title_full The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2
title_fullStr The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2
title_full_unstemmed The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2
title_short The Continuing Emergence of <i>Candida blankii</i> as a Pathogenic Fungus: A New Case of Fungemia in a Patient Infected with SARS-CoV-2
title_sort continuing emergence of i candida blankii i as a pathogenic fungus a new case of fungemia in a patient infected with sars cov 2
topic <i>Candida blankii</i>
fungemia
COVID-19
url https://www.mdpi.com/2309-608X/8/2/166
work_keys_str_mv AT ryanmirchin thecontinuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT jonathanmczeresnia thecontinuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT erikaporner thecontinuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT sudhachaturvedi thecontinuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT kerrymurphy thecontinuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT joshuadnosanchuk thecontinuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT ryanmirchin continuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT jonathanmczeresnia continuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT erikaporner continuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT sudhachaturvedi continuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT kerrymurphy continuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2
AT joshuadnosanchuk continuingemergenceoficandidablankiiiasapathogenicfungusanewcaseoffungemiainapatientinfectedwithsarscov2