Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)

A voluntary biosurveillance program was established in 2008 in order to determine the shedding frequency and prevalence factors for common respiratory pathogens associated with acute onset of fever and/or respiratory signs in equids from the USA. Over a period of 13 years, a total of 10,296 equids w...

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Main Authors: Nicola Pusterla, Kaitlyn James, Samantha Barnum, Fairfield Bain, D. Craig Barnett, Duane Chappell, Earl Gaughan, Bryant Craig, Chrissie Schneider, Wendy Vaala
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Pathogens
Subjects:
Online Access:https://www.mdpi.com/2076-0817/11/7/759
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author Nicola Pusterla
Kaitlyn James
Samantha Barnum
Fairfield Bain
D. Craig Barnett
Duane Chappell
Earl Gaughan
Bryant Craig
Chrissie Schneider
Wendy Vaala
author_facet Nicola Pusterla
Kaitlyn James
Samantha Barnum
Fairfield Bain
D. Craig Barnett
Duane Chappell
Earl Gaughan
Bryant Craig
Chrissie Schneider
Wendy Vaala
author_sort Nicola Pusterla
collection DOAJ
description A voluntary biosurveillance program was established in 2008 in order to determine the shedding frequency and prevalence factors for common respiratory pathogens associated with acute onset of fever and/or respiratory signs in equids from the USA. Over a period of 13 years, a total of 10,296 equids were enrolled in the program and nasal secretions were analyzed for the qPCR detection of equine influenza virus (EIV), equine herpesvirus-1 (EHV-1), EHV-4, equine rhinitis A and B virus (ERVs), and <i>Streptococcus equi</i> subspecies <i>equi</i> (<i>S. equi</i>). Single infections with respiratory pathogens were detected in 21.1% of the submissions with EIV (6.8%) and EHV-4 (6.6%) as the two most prevalent viruses, followed by <i>S. equi</i> (4.7%), ERVs (2.3%), and EHV-1 (0.7%). Multiple pathogens were detected in 274 horses (2.7%) and no respiratory pathogens in 7836 horses (76.2%). Specific prevalence factors were determined for each of the six respiratory pathogen groups; most differences were associated with age, breed, and use of the horses, while the clinical signs were fairly consistent between viral and bacterial respiratory infections. Monitoring the frequency of detection of common respiratory pathogens is important in order to gain a better understanding of their epidemiology and to implement management practices aimed at controlling disease spread.
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spelling doaj.art-8c27653ded3e4ec0a3d96a9095c59b0e2023-12-01T22:32:37ZengMDPI AGPathogens2076-08172022-07-0111775910.3390/pathogens11070759Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)Nicola Pusterla0Kaitlyn James1Samantha Barnum2Fairfield Bain3D. Craig Barnett4Duane Chappell5Earl Gaughan6Bryant Craig7Chrissie Schneider8Wendy Vaala9Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95616, USADepartment of Obstetrics, Gynecology and Reproduction Biology, Massachusetts General Hospital, Boston, MA 02114, USADepartment of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95616, USAMerck Animal Health, Madison, NJ 07940, USAMerck Animal Health, Madison, NJ 07940, USAMerck Animal Health, Madison, NJ 07940, USAMerck Animal Health, Madison, NJ 07940, USAMerck Animal Health, Madison, NJ 07940, USAMerck Animal Health, Madison, NJ 07940, USAMerck Animal Health, Madison, NJ 07940, USAA voluntary biosurveillance program was established in 2008 in order to determine the shedding frequency and prevalence factors for common respiratory pathogens associated with acute onset of fever and/or respiratory signs in equids from the USA. Over a period of 13 years, a total of 10,296 equids were enrolled in the program and nasal secretions were analyzed for the qPCR detection of equine influenza virus (EIV), equine herpesvirus-1 (EHV-1), EHV-4, equine rhinitis A and B virus (ERVs), and <i>Streptococcus equi</i> subspecies <i>equi</i> (<i>S. equi</i>). Single infections with respiratory pathogens were detected in 21.1% of the submissions with EIV (6.8%) and EHV-4 (6.6%) as the two most prevalent viruses, followed by <i>S. equi</i> (4.7%), ERVs (2.3%), and EHV-1 (0.7%). Multiple pathogens were detected in 274 horses (2.7%) and no respiratory pathogens in 7836 horses (76.2%). Specific prevalence factors were determined for each of the six respiratory pathogen groups; most differences were associated with age, breed, and use of the horses, while the clinical signs were fairly consistent between viral and bacterial respiratory infections. Monitoring the frequency of detection of common respiratory pathogens is important in order to gain a better understanding of their epidemiology and to implement management practices aimed at controlling disease spread.https://www.mdpi.com/2076-0817/11/7/759upper respiratory tract infectionviruses and bacteriafrequencyprevalence factorsqPCRequids
spellingShingle Nicola Pusterla
Kaitlyn James
Samantha Barnum
Fairfield Bain
D. Craig Barnett
Duane Chappell
Earl Gaughan
Bryant Craig
Chrissie Schneider
Wendy Vaala
Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)
Pathogens
upper respiratory tract infection
viruses and bacteria
frequency
prevalence factors
qPCR
equids
title Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)
title_full Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)
title_fullStr Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)
title_full_unstemmed Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)
title_short Frequency of Detection and Prevalence Factors Associated with Common Respiratory Pathogens in Equids with Acute Onset of Fever and/or Respiratory Signs (2008–2021)
title_sort frequency of detection and prevalence factors associated with common respiratory pathogens in equids with acute onset of fever and or respiratory signs 2008 2021
topic upper respiratory tract infection
viruses and bacteria
frequency
prevalence factors
qPCR
equids
url https://www.mdpi.com/2076-0817/11/7/759
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