Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats

Abstract Background Infection with Bartonella species is common in cats but reported effects of bacteremia on laboratory variables differ. Objectives Evaluate for associations between Bartonella bacteremia and CBC and serum biochemical changes in sick and healthy cats throughout the United States. A...

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Main Authors: Maggie Williams, Sangeeta Rao, Jennifer Braff, Jesse S. Buch, Ramaswamy Chandrashekar, Michael R. Lappin
Format: Article
Language:English
Published: Wiley 2022-03-01
Series:Journal of Veterinary Internal Medicine
Subjects:
Online Access:https://doi.org/10.1111/jvim.16376
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author Maggie Williams
Sangeeta Rao
Jennifer Braff
Jesse S. Buch
Ramaswamy Chandrashekar
Michael R. Lappin
author_facet Maggie Williams
Sangeeta Rao
Jennifer Braff
Jesse S. Buch
Ramaswamy Chandrashekar
Michael R. Lappin
author_sort Maggie Williams
collection DOAJ
description Abstract Background Infection with Bartonella species is common in cats but reported effects of bacteremia on laboratory variables differ. Objectives Evaluate for associations between Bartonella bacteremia and CBC and serum biochemical changes in sick and healthy cats throughout the United States. Animals A total of 3964 client‐owned cats. Methods Retrospective cohort study using submissions to a commercial laboratory between 2011 and 2017. Serum biochemistry and CBC abnormalities (categorized as above or below reference intervals), age, and location (high‐ or low‐risk state for Ctenocephalides felis) in presumed healthy and sick cats were evaluated for associations with presence of Bartonella spp. DNA, detected by PCR. Univariate and multivariable logistic regression analyses were performed. Results Bartonella spp. DNA was amplified from 127 (3.2%) of 3964 cats; 126 (99.2%) of 127 were from high flea risk states and 121 (95.3%) of 127 were presumed sick. Fever of unknown origin was the most common PCR panel requested. In the multivariable analysis, neutrophilia, decreased ALP activity, clinical status (presumed sick), and young age (≤2 years) each were positively associated whereas neutropenia and hyperproteinemia both were negatively associated with Bartonella spp. bacteremia. Presence of Bartonella spp. DNA had no association with test results for other infectious disease agents. Conclusions and Clinical Importance In both healthy and sick cats, active Bartonella infections had minimal association with clinically relevant laboratory abnormalities. However, based on these results, in areas considered high risk for C. felis, active infection with Bartonella spp. is a reasonable differential diagnosis for cats presented with unexplained fever and neutrophilia, particularly if the cat is young.
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spelling doaj.art-385821331ff14c91afd65d87d280d04b2022-12-21T21:17:42ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762022-03-0136253254010.1111/jvim.16376Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned catsMaggie Williams0Sangeeta Rao1Jennifer Braff2Jesse S. Buch3Ramaswamy Chandrashekar4Michael R. Lappin5Department of Clinical Sciences Colorado State University Fort Collins Colorado USADepartment of Clinical Sciences Colorado State University Fort Collins Colorado USAIDEXX Laboratories, Inc. Westbrook Maine USAIDEXX Laboratories, Inc. Westbrook Maine USAIDEXX Laboratories, Inc. Westbrook Maine USADepartment of Clinical Sciences Colorado State University Fort Collins Colorado USAAbstract Background Infection with Bartonella species is common in cats but reported effects of bacteremia on laboratory variables differ. Objectives Evaluate for associations between Bartonella bacteremia and CBC and serum biochemical changes in sick and healthy cats throughout the United States. Animals A total of 3964 client‐owned cats. Methods Retrospective cohort study using submissions to a commercial laboratory between 2011 and 2017. Serum biochemistry and CBC abnormalities (categorized as above or below reference intervals), age, and location (high‐ or low‐risk state for Ctenocephalides felis) in presumed healthy and sick cats were evaluated for associations with presence of Bartonella spp. DNA, detected by PCR. Univariate and multivariable logistic regression analyses were performed. Results Bartonella spp. DNA was amplified from 127 (3.2%) of 3964 cats; 126 (99.2%) of 127 were from high flea risk states and 121 (95.3%) of 127 were presumed sick. Fever of unknown origin was the most common PCR panel requested. In the multivariable analysis, neutrophilia, decreased ALP activity, clinical status (presumed sick), and young age (≤2 years) each were positively associated whereas neutropenia and hyperproteinemia both were negatively associated with Bartonella spp. bacteremia. Presence of Bartonella spp. DNA had no association with test results for other infectious disease agents. Conclusions and Clinical Importance In both healthy and sick cats, active Bartonella infections had minimal association with clinically relevant laboratory abnormalities. However, based on these results, in areas considered high risk for C. felis, active infection with Bartonella spp. is a reasonable differential diagnosis for cats presented with unexplained fever and neutrophilia, particularly if the cat is young.https://doi.org/10.1111/jvim.16376bacteremiabartonellosisfeverPCR
spellingShingle Maggie Williams
Sangeeta Rao
Jennifer Braff
Jesse S. Buch
Ramaswamy Chandrashekar
Michael R. Lappin
Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats
Journal of Veterinary Internal Medicine
bacteremia
bartonellosis
fever
PCR
title Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats
title_full Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats
title_fullStr Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats
title_full_unstemmed Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats
title_short Associations between presence of Bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client‐owned cats
title_sort associations between presence of bartonella species deoxyribonucleic acid and complete blood cell count and serum biochemical changes in client owned cats
topic bacteremia
bartonellosis
fever
PCR
url https://doi.org/10.1111/jvim.16376
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