Voluntary Surveillance Program for Equine Influenza Virus in the United States from 2010 to 2013

Nicola Pusterla; Philip H Kass; S. Mapes; C. Wademan; N. Akana; C. Barnett; C. Mackenzie; W. Vaala

doi:10.1111/jvim.12519

Voluntary Surveillance Program for Equine Influenza Virus in the United States from 2010 to 2013

Nicola Pusterla, Philip H Kass, S. Mapes, C. Wademan, N. Akana, C. Barnett, C. Mackenzie, W. Vaala

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Background: Recent surveillance studies for equine respiratory viruses have shown that equine influenza virus (EIV) continues to be a prevalent respiratory virus of equids throughout the United States and Europe. Objectives: To gain a better understanding of the prevalence and epidemiology of EIV shed by horses, mules and donkeys in the United States from March 2010 to November 2013. Animals: 2,605 equids. Methods: Nasal secretions from index cases with acute onset of respiratory disease were tested by qPCR for EIV. Multilevel logistic regression was used to model the association between EIV status and prevalence factors. Furthermore, observations from EIV-positive study horses were compared to previous data from March 2008 to February 2010. Results: A total of 230 (9.7%) index cases tested qPCR positive for EIV. A higher-than-expected proportion of EIV qPCR-positive horses occurred in the 1-5, 6-10, and 11-15 age groups when compared to the

Original language	English (US)
Pages (from-to)	417-422
Number of pages	6
Journal	Journal of Veterinary Internal Medicine
Volume	29
Issue number	1
DOIs	https://doi.org/10.1111/jvim.12519
State	Published - Jan 1 2015

Keywords

United States
EIV
Surveillance

ASJC Scopus subject areas

veterinary(all)

Access to Document

10.1111/jvim.12519

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title = "Voluntary Surveillance Program for Equine Influenza Virus in the United States from 2010 to 2013",

abstract = "Background: Recent surveillance studies for equine respiratory viruses have shown that equine influenza virus (EIV) continues to be a prevalent respiratory virus of equids throughout the United States and Europe. Objectives: To gain a better understanding of the prevalence and epidemiology of EIV shed by horses, mules and donkeys in the United States from March 2010 to November 2013. Animals: 2,605 equids. Methods: Nasal secretions from index cases with acute onset of respiratory disease were tested by qPCR for EIV. Multilevel logistic regression was used to model the association between EIV status and prevalence factors. Furthermore, observations from EIV-positive study horses were compared to previous data from March 2008 to February 2010. Results: A total of 230 (9.7%) index cases tested qPCR positive for EIV. A higher-than-expected proportion of EIV qPCR-positive horses occurred in the 1-5, 6-10, and 11-15 age groups when compared to the ",

keywords = "United States, EIV, Surveillance",

author = "Nicola Pusterla and Kass, {Philip H} and S. Mapes and C. Wademan and N. Akana and C. Barnett and C. Mackenzie and W. Vaala",

year = "2015",

month = jan,

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language = "English (US)",

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T1 - Voluntary Surveillance Program for Equine Influenza Virus in the United States from 2010 to 2013

AU - Pusterla, Nicola

AU - Kass, Philip H

AU - Mapes, S.

AU - Wademan, C.

AU - Akana, N.

AU - Barnett, C.

AU - Mackenzie, C.

AU - Vaala, W.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Background: Recent surveillance studies for equine respiratory viruses have shown that equine influenza virus (EIV) continues to be a prevalent respiratory virus of equids throughout the United States and Europe. Objectives: To gain a better understanding of the prevalence and epidemiology of EIV shed by horses, mules and donkeys in the United States from March 2010 to November 2013. Animals: 2,605 equids. Methods: Nasal secretions from index cases with acute onset of respiratory disease were tested by qPCR for EIV. Multilevel logistic regression was used to model the association between EIV status and prevalence factors. Furthermore, observations from EIV-positive study horses were compared to previous data from March 2008 to February 2010. Results: A total of 230 (9.7%) index cases tested qPCR positive for EIV. A higher-than-expected proportion of EIV qPCR-positive horses occurred in the 1-5, 6-10, and 11-15 age groups when compared to the

AB - Background: Recent surveillance studies for equine respiratory viruses have shown that equine influenza virus (EIV) continues to be a prevalent respiratory virus of equids throughout the United States and Europe. Objectives: To gain a better understanding of the prevalence and epidemiology of EIV shed by horses, mules and donkeys in the United States from March 2010 to November 2013. Animals: 2,605 equids. Methods: Nasal secretions from index cases with acute onset of respiratory disease were tested by qPCR for EIV. Multilevel logistic regression was used to model the association between EIV status and prevalence factors. Furthermore, observations from EIV-positive study horses were compared to previous data from March 2008 to February 2010. Results: A total of 230 (9.7%) index cases tested qPCR positive for EIV. A higher-than-expected proportion of EIV qPCR-positive horses occurred in the 1-5, 6-10, and 11-15 age groups when compared to the

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