Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever

Historically, disease progression in animal models of Q fever has been carried out using PCR to monitor the presence of Coxiella burnetii DNA in the host. However, the colonization and dissemination of other bacterial infections in animal models are tracked using viable counts, enabling an accurate...

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Main Authors: M. Gill Hartley, Esther Ralph, Isobel H. Norville, Joann L. Prior, Timothy P. Atkins
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-07-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmicb.2019.01552/full
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author M. Gill Hartley
Esther Ralph
Isobel H. Norville
Joann L. Prior
Joann L. Prior
Timothy P. Atkins
Timothy P. Atkins
author_facet M. Gill Hartley
Esther Ralph
Isobel H. Norville
Joann L. Prior
Joann L. Prior
Timothy P. Atkins
Timothy P. Atkins
author_sort M. Gill Hartley
collection DOAJ
description Historically, disease progression in animal models of Q fever has been carried out using PCR to monitor the presence of Coxiella burnetii DNA in the host. However, the colonization and dissemination of other bacterial infections in animal models are tracked using viable counts, enabling an accurate assessment of viable bacterial load within tissues. Following recent advances in the culture methods, it has become possible to do the same with C. burnetii. Here we compare and contrast the different information gained by using PCR or viable counts to study this disease. Viable bacteria were cleared from organs much faster than previously reported when assessed by bacterial DNA, but weight loss and clinical signs improved while animals were still heavily infected.
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spelling doaj.art-63057ebfe1f44e60b7abf7ac7c0f1df02022-12-22T02:00:01ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2019-07-011010.3389/fmicb.2019.01552455449Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q FeverM. Gill Hartley0Esther Ralph1Isobel H. Norville2Joann L. Prior3Joann L. Prior4Timothy P. Atkins5Timothy P. Atkins6CBR, Defence Science and Technology Laboratory, Salisbury, United KingdomCBR, Defence Science and Technology Laboratory, Salisbury, United KingdomCBR, Defence Science and Technology Laboratory, Salisbury, United KingdomCBR, Defence Science and Technology Laboratory, Salisbury, United KingdomCollege of Life and Environmental Sciences, University of Exeter, Exeter, United KingdomCBR, Defence Science and Technology Laboratory, Salisbury, United KingdomCollege of Life and Environmental Sciences, University of Exeter, Exeter, United KingdomHistorically, disease progression in animal models of Q fever has been carried out using PCR to monitor the presence of Coxiella burnetii DNA in the host. However, the colonization and dissemination of other bacterial infections in animal models are tracked using viable counts, enabling an accurate assessment of viable bacterial load within tissues. Following recent advances in the culture methods, it has become possible to do the same with C. burnetii. Here we compare and contrast the different information gained by using PCR or viable counts to study this disease. Viable bacteria were cleared from organs much faster than previously reported when assessed by bacterial DNA, but weight loss and clinical signs improved while animals were still heavily infected.https://www.frontiersin.org/article/10.3389/fmicb.2019.01552/fullCoxiellaviabilitymouse modelPCRcounts
spellingShingle M. Gill Hartley
Esther Ralph
Isobel H. Norville
Joann L. Prior
Joann L. Prior
Timothy P. Atkins
Timothy P. Atkins
Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever
Frontiers in Microbiology
Coxiella
viability
mouse model
PCR
counts
title Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever
title_full Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever
title_fullStr Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever
title_full_unstemmed Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever
title_short Comparison of PCR and Viable Count as a Method for Enumeration of Bacteria in an A/J Mouse Aerosol Model of Q Fever
title_sort comparison of pcr and viable count as a method for enumeration of bacteria in an a j mouse aerosol model of q fever
topic Coxiella
viability
mouse model
PCR
counts
url https://www.frontiersin.org/article/10.3389/fmicb.2019.01552/full
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