Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms

Human babesiosis is a life-threatening infectious disease that causes societal and economic impact worldwide. Several species of <i>Babesia</i> cause babesiosis in terrestrial vertebrates, including humans. A one-day clinic was held in Ontario, Canada, to see if a red blood cell parasite...

Full description

Bibliographic Details
Main Authors: John D. Scott, Muhammad S. Sajid, Emily L. Pascoe, Janet E. Foley
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Diagnostics
Subjects:
Online Access:https://www.mdpi.com/2075-4418/11/6/947
_version_ 1827691525469896704
author John D. Scott
Muhammad S. Sajid
Emily L. Pascoe
Janet E. Foley
author_facet John D. Scott
Muhammad S. Sajid
Emily L. Pascoe
Janet E. Foley
author_sort John D. Scott
collection DOAJ
description Human babesiosis is a life-threatening infectious disease that causes societal and economic impact worldwide. Several species of <i>Babesia</i> cause babesiosis in terrestrial vertebrates, including humans. A one-day clinic was held in Ontario, Canada, to see if a red blood cell parasite, which is present in blacklegged ticks, <i>Ixodes scapularis</i>, is present in humans. Based on PCR testing and DNA sequencing of the 18S rRNA gene, we unveiled <i>B. odocoilei</i> in two of 19 participants. DNA amplicons from these two patients are almost identical matches with the type strains of <i>B. odocoilei</i> in GenBank. In addition, the same two human subjects had the hallmark symptoms of human babesiosis, including night sweats, chills, fevers, and profound fatigue. Based on symptoms and molecular identification, we provide substantive evidence that <i>B. odocoilei</i> is pathogenic to humans. Dataset reveals that <i>B. odocoilei</i> serologically cross-reacts with <i>Babesia duncani</i>. Clinicians must realize that there are more than two <i>Babesia</i> spp. in North America that cause human babesiosis. This discovery signifies the first report of <i>B. odocoilei</i> causing human babesiosis.
first_indexed 2024-03-10T11:03:56Z
format Article
id doaj.art-e632b9bb164a44da804d4d127f29167e
institution Directory Open Access Journal
issn 2075-4418
language English
last_indexed 2024-03-10T11:03:56Z
publishDate 2021-05-01
publisher MDPI AG
record_format Article
series Diagnostics
spelling doaj.art-e632b9bb164a44da804d4d127f29167e2023-11-21T21:21:27ZengMDPI AGDiagnostics2075-44182021-05-0111694710.3390/diagnostics11060947Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis SymptomsJohn D. Scott0Muhammad S. Sajid1Emily L. Pascoe2Janet E. Foley3Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USADepartment of Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USADepartment of Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USADepartment of Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USAHuman babesiosis is a life-threatening infectious disease that causes societal and economic impact worldwide. Several species of <i>Babesia</i> cause babesiosis in terrestrial vertebrates, including humans. A one-day clinic was held in Ontario, Canada, to see if a red blood cell parasite, which is present in blacklegged ticks, <i>Ixodes scapularis</i>, is present in humans. Based on PCR testing and DNA sequencing of the 18S rRNA gene, we unveiled <i>B. odocoilei</i> in two of 19 participants. DNA amplicons from these two patients are almost identical matches with the type strains of <i>B. odocoilei</i> in GenBank. In addition, the same two human subjects had the hallmark symptoms of human babesiosis, including night sweats, chills, fevers, and profound fatigue. Based on symptoms and molecular identification, we provide substantive evidence that <i>B. odocoilei</i> is pathogenic to humans. Dataset reveals that <i>B. odocoilei</i> serologically cross-reacts with <i>Babesia duncani</i>. Clinicians must realize that there are more than two <i>Babesia</i> spp. in North America that cause human babesiosis. This discovery signifies the first report of <i>B. odocoilei</i> causing human babesiosis.https://www.mdpi.com/2075-4418/11/6/947<i>Babesia odocoilei</i>piroplasmhuman babesiosis18S rRNAticks<i>Ixodes scapularis</i>
spellingShingle John D. Scott
Muhammad S. Sajid
Emily L. Pascoe
Janet E. Foley
Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms
Diagnostics
<i>Babesia odocoilei</i>
piroplasm
human babesiosis
18S rRNA
ticks
<i>Ixodes scapularis</i>
title Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms
title_full Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms
title_fullStr Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms
title_full_unstemmed Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms
title_short Detection of <i>Babesia odocoilei</i> in Humans with Babesiosis Symptoms
title_sort detection of i babesia odocoilei i in humans with babesiosis symptoms
topic <i>Babesia odocoilei</i>
piroplasm
human babesiosis
18S rRNA
ticks
<i>Ixodes scapularis</i>
url https://www.mdpi.com/2075-4418/11/6/947
work_keys_str_mv AT johndscott detectionofibabesiaodocoileiiinhumanswithbabesiosissymptoms
AT muhammadssajid detectionofibabesiaodocoileiiinhumanswithbabesiosissymptoms
AT emilylpascoe detectionofibabesiaodocoileiiinhumanswithbabesiosissymptoms
AT janetefoley detectionofibabesiaodocoileiiinhumanswithbabesiosissymptoms