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The impact of holding time on the likelihood of moving internally contaminated eggs from a highly pathogenic avian influenza infected but undetected commercial table-egg layer flock.

Abstract Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may involve quarantine and movement controls for poultry products such as eggs. However, such disease control measures may disrupt business continuity and impact food security, since egg production facilities often do not have sufficient capacity to store eggs for prolonged periods. We propose the incorporation of a holding time before egg movement in conjunction with targeted active surveillance as a novel approach to move eggs from flocks within a control area with a low likelihood of them being contaminated with HPAI virus. Holding time reduces the likelihood of HPAI-contaminated eggs being moved from a farm before HPAI infection is detected in the flock. We used a stochastic disease transmission model to estimate the HPAI disease prevalence, disease mortality, and fraction of internally contaminated eggs at various time points postinfection of a commercial table-egg layer flock. The transmission model results were then used in a simulation model of a targeted matrix gene real-time reverse transcriptase (RRT)-PCR testing based surveillance protocol to estimate the time to detection and the number of contaminated eggs moved under different holding times. Our simulation results indicate a significant reduction in the number of internally contaminated eggs moved from an HPAI-infected undetected flock with each additional day of holding time. Incorporation of a holding time and the use of targeted surveillance have been adopted by the U.S. Department of Agriculture in their Draft Secure Egg Supply Plan for movement of egg industry products during an HPAI outbreak.
PMID
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Authors

Mayor MeshTerms

Chickens

Keywords
Journal Title avian diseases
Publication Year Start
%A Malladi, Sasidhar; Weaver, J. Todd; Goldsmith, Timothy; Hueston, William; Voss, Shauna; Funk, Janel; Der, Christina; Bjork, Kathe E.; Clouse, Timothy L.; Hennessey, Morgan; Sampedro, Fernando; Lee, Brendan; Halvorson, David A.
%T The impact of holding time on the likelihood of moving internally contaminated eggs from a highly pathogenic avian influenza infected but undetected commercial table-egg layer flock.
%J Avian diseases, vol. 56, no. 4 Suppl, pp. 897-904
%D 12/2012
%V 56
%N 4 Suppl
%M eng
%B Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may involve quarantine and movement controls for poultry products such as eggs. However, such disease control measures may disrupt business continuity and impact food security, since egg production facilities often do not have sufficient capacity to store eggs for prolonged periods. We propose the incorporation of a holding time before egg movement in conjunction with targeted active surveillance as a novel approach to move eggs from flocks within a control area with a low likelihood of them being contaminated with HPAI virus. Holding time reduces the likelihood of HPAI-contaminated eggs being moved from a farm before HPAI infection is detected in the flock. We used a stochastic disease transmission model to estimate the HPAI disease prevalence, disease mortality, and fraction of internally contaminated eggs at various time points postinfection of a commercial table-egg layer flock. The transmission model results were then used in a simulation model of a targeted matrix gene real-time reverse transcriptase (RRT)-PCR testing based surveillance protocol to estimate the time to detection and the number of contaminated eggs moved under different holding times. Our simulation results indicate a significant reduction in the number of internally contaminated eggs moved from an HPAI-infected undetected flock with each additional day of holding time. Incorporation of a holding time and the use of targeted surveillance have been adopted by the U.S. Department of Agriculture in their Draft Secure Egg Supply Plan for movement of egg industry products during an HPAI outbreak.
%K Animals, Chickens, Computer Simulation, Female, Influenza in Birds, Models, Biological, Ovum, Population Surveillance, Quarantine, Time Factors
%P 897
%L 904
%Y 10.1637/10191-041012-Reg.1
%W PHY
%G AUTHOR
%R 2012.......56..897M

@Article{Malladi2012,
author="Malladi, Sasidhar
and Weaver, J. Todd
and Goldsmith, Timothy
and Hueston, William
and Voss, Shauna
and Funk, Janel
and Der, Christina
and Bjork, Kathe E.
and Clouse, Timothy L.
and Hennessey, Morgan
and Sampedro, Fernando
and Lee, Brendan
and Halvorson, David A.",
title="The impact of holding time on the likelihood of moving internally contaminated eggs from a highly pathogenic avian influenza infected but undetected commercial table-egg layer flock.",
journal="Avian diseases",
year="2012",
month="Dec",
volume="56",
number="4 Suppl",
pages="897--904",
keywords="Animals",
keywords="Chickens",
keywords="Computer Simulation",
keywords="Female",
keywords="Influenza in Birds",
keywords="Models, Biological",
keywords="Ovum",
keywords="Population Surveillance",
keywords="Quarantine",
keywords="Time Factors",
abstract="Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may involve quarantine and movement controls for poultry products such as eggs. However, such disease control measures may disrupt business continuity and impact food security, since egg production facilities often do not have sufficient capacity to store eggs for prolonged periods. We propose the incorporation of a holding time before egg movement in conjunction with targeted active surveillance as a novel approach to move eggs from flocks within a control area with a low likelihood of them being contaminated with HPAI virus. Holding time reduces the likelihood of HPAI-contaminated eggs being moved from a farm before HPAI infection is detected in the flock. We used a stochastic disease transmission model to estimate the HPAI disease prevalence, disease mortality, and fraction of internally contaminated eggs at various time points postinfection of a commercial table-egg layer flock. The transmission model results were then used in a simulation model of a targeted matrix gene real-time reverse transcriptase (RRT)-PCR testing based surveillance protocol to estimate the time to detection and the number of contaminated eggs moved under different holding times. Our simulation results indicate a significant reduction in the number of internally contaminated eggs moved from an HPAI-infected undetected flock with each additional day of holding time. Incorporation of a holding time and the use of targeted surveillance have been adopted by the U.S. Department of Agriculture in their Draft Secure Egg Supply Plan for movement of egg industry products during an HPAI outbreak.",
issn="0005-2086",
doi="10.1637/10191-041012-Reg.1",
url="http://www.ncbi.nlm.nih.gov/pubmed/23402110",
language="eng"
}

%0 Journal Article
%T The impact of holding time on the likelihood of moving internally contaminated eggs from a highly pathogenic avian influenza infected but undetected commercial table-egg layer flock.
%A Malladi, Sasidhar
%A Weaver, J. Todd
%A Goldsmith, Timothy
%A Hueston, William
%A Voss, Shauna
%A Funk, Janel
%A Der, Christina
%A Bjork, Kathe E.
%A Clouse, Timothy L.
%A Hennessey, Morgan
%A Sampedro, Fernando
%A Lee, Brendan
%A Halvorson, David A.
%J Avian diseases
%D 2012
%8 Dec
%V 56
%N 4 Suppl
%@ 0005-2086
%G eng
%F Malladi2012
%X Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may involve quarantine and movement controls for poultry products such as eggs. However, such disease control measures may disrupt business continuity and impact food security, since egg production facilities often do not have sufficient capacity to store eggs for prolonged periods. We propose the incorporation of a holding time before egg movement in conjunction with targeted active surveillance as a novel approach to move eggs from flocks within a control area with a low likelihood of them being contaminated with HPAI virus. Holding time reduces the likelihood of HPAI-contaminated eggs being moved from a farm before HPAI infection is detected in the flock. We used a stochastic disease transmission model to estimate the HPAI disease prevalence, disease mortality, and fraction of internally contaminated eggs at various time points postinfection of a commercial table-egg layer flock. The transmission model results were then used in a simulation model of a targeted matrix gene real-time reverse transcriptase (RRT)-PCR testing based surveillance protocol to estimate the time to detection and the number of contaminated eggs moved under different holding times. Our simulation results indicate a significant reduction in the number of internally contaminated eggs moved from an HPAI-infected undetected flock with each additional day of holding time. Incorporation of a holding time and the use of targeted surveillance have been adopted by the U.S. Department of Agriculture in their Draft Secure Egg Supply Plan for movement of egg industry products during an HPAI outbreak.
%K Animals
%K Chickens
%K Computer Simulation
%K Female
%K Influenza in Birds
%K Models, Biological
%K Ovum
%K Population Surveillance
%K Quarantine
%K Time Factors
%U http://dx.doi.org/10.1637/10191-041012-Reg.1
%U http://www.ncbi.nlm.nih.gov/pubmed/23402110
%P 897-904

PT Journal
AU Malladi, S
   Weaver, JT
   Goldsmith, T
   Hueston, W
   Voss, S
   Funk, J
   Der, C
   Bjork, KE
   Clouse, TL
   Hennessey, M
   Sampedro, F
   Lee, B
   Halvorson, DA
TI The impact of holding time on the likelihood of moving internally contaminated eggs from a highly pathogenic avian influenza infected but undetected commercial table-egg layer flock.
SO Avian diseases
JI Avian Dis.
PD Dec
PY 2012
BP 897
EP 904
VL 56
IS 4 Suppl
DI 10.1637/10191-041012-Reg.1
LA eng
DE Animals; Chickens; Computer Simulation; Female; Influenza in Birds; Models, Biological; Ovum; Population Surveillance; Quarantine; Time Factors
AB Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may involve quarantine and movement controls for poultry products such as eggs. However, such disease control measures may disrupt business continuity and impact food security, since egg production facilities often do not have sufficient capacity to store eggs for prolonged periods. We propose the incorporation of a holding time before egg movement in conjunction with targeted active surveillance as a novel approach to move eggs from flocks within a control area with a low likelihood of them being contaminated with HPAI virus. Holding time reduces the likelihood of HPAI-contaminated eggs being moved from a farm before HPAI infection is detected in the flock. We used a stochastic disease transmission model to estimate the HPAI disease prevalence, disease mortality, and fraction of internally contaminated eggs at various time points postinfection of a commercial table-egg layer flock. The transmission model results were then used in a simulation model of a targeted matrix gene real-time reverse transcriptase (RRT)-PCR testing based surveillance protocol to estimate the time to detection and the number of contaminated eggs moved under different holding times. Our simulation results indicate a significant reduction in the number of internally contaminated eggs moved from an HPAI-infected undetected flock with each additional day of holding time. Incorporation of a holding time and the use of targeted surveillance have been adopted by the U.S. Department of Agriculture in their Draft Secure Egg Supply Plan for movement of egg industry products during an HPAI outbreak.
ER

PMID- 23402110
OWN - NLM
STAT- MEDLINE
DA  - 20130213
DCOM- 20130410
IS  - 0005-2086 (Print)
IS  - 0005-2086 (Linking)
VI  - 56
IP  - 4 Suppl
DP  - 2012 Dec
TI  - The impact of holding time on the likelihood of moving internally contaminated
      eggs from a highly pathogenic avian influenza infected but undetected commercial 
      table-egg layer flock.
PG  - 897-904
AB  - Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may
      involve quarantine and movement controls for poultry products such as eggs.
      However, such disease control measures may disrupt business continuity and impact
      food security, since egg production facilities often do not have sufficient
      capacity to store eggs for prolonged periods. We propose the incorporation of a
      holding time before egg movement in conjunction with targeted active surveillance
      as a novel approach to move eggs from flocks within a control area with a low
      likelihood of them being contaminated with HPAI virus. Holding time reduces the
      likelihood of HPAI-contaminated eggs being moved from a farm before HPAI
      infection is detected in the flock. We used a stochastic disease transmission
      model to estimate the HPAI disease prevalence, disease mortality, and fraction of
      internally contaminated eggs at various time points postinfection of a commercial
      table-egg layer flock. The transmission model results were then used in a
      simulation model of a targeted matrix gene real-time reverse transcriptase
      (RRT)-PCR testing based surveillance protocol to estimate the time to detection
      and the number of contaminated eggs moved under different holding times. Our
      simulation results indicate a significant reduction in the number of internally
      contaminated eggs moved from an HPAI-infected undetected flock with each
      additional day of holding time. Incorporation of a holding time and the use of
      targeted surveillance have been adopted by the U.S. Department of Agriculture in 
      their Draft Secure Egg Supply Plan for movement of egg industry products during
      an HPAI outbreak.
FAU - Malladi, Sasidhar
AU  - Malladi S
AD  - University of Minnesota, Center for Animal Health and Food Safety, 136 Andrew
      Boss Laboratory, 1354 Eckles Avenue, St. Paul, MN 55108, USA. [email protected]
FAU - Weaver, J Todd
AU  - Weaver JT
FAU - Goldsmith, Timothy
AU  - Goldsmith T
FAU - Hueston, William
AU  - Hueston W
FAU - Voss, Shauna
AU  - Voss S
FAU - Funk, Janel
AU  - Funk J
FAU - Der, Christina
AU  - Der C
FAU - Bjork, Kathe E
AU  - Bjork KE
FAU - Clouse, Timothy L
AU  - Clouse TL
FAU - Hennessey, Morgan
AU  - Hennessey M
FAU - Sampedro, Fernando
AU  - Sampedro F
FAU - Lee, Brendan
AU  - Lee B
FAU - Halvorson, David A
AU  - Halvorson DA
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Avian Dis
JT  - Avian diseases
JID - 0370617
SB  - IM
MH  - Animals
MH  - *Chickens
MH  - Computer Simulation
MH  - Female
MH  - Influenza in Birds/*transmission/virology
MH  - Models, Biological
MH  - Ovum/*virology
MH  - Population Surveillance
MH  - Quarantine
MH  - Time Factors
EDAT- 2013/02/14 06:00
MHDA- 2013/04/11 06:00
CRDT- 2013/02/14 06:00
AID - 10.1637/10191-041012-Reg.1 [doi]
PST - ppublish
SO  - Avian Dis. 2012 Dec;56(4 Suppl):897-904.
TY  - JOUR
AU  - Malladi, Sasidhar
AU  - Weaver, J. Todd
AU  - Goldsmith, Timothy
AU  - Hueston, William
AU  - Voss, Shauna
AU  - Funk, Janel
AU  - Der, Christina
AU  - Bjork, Kathe E.
AU  - Clouse, Timothy L.
AU  - Hennessey, Morgan
AU  - Sampedro, Fernando
AU  - Lee, Brendan
AU  - Halvorson, David A.
PY  - 2012/Dec/
TI  - The impact of holding time on the likelihood of moving internally contaminated eggs from a highly pathogenic avian influenza infected but undetected commercial table-egg layer flock.
T2  - Avian Dis.
JO  - Avian diseases
SP  - 897
EP  - 904
VL  - 56
IS  - 4 Suppl
KW  - Animals
KW  - Chickens
KW  - Computer Simulation
KW  - Female
KW  - Influenza in Birds
KW  - Models, Biological
KW  - Ovum
KW  - Population Surveillance
KW  - Quarantine
KW  - Time Factors
N2  - Emergency response during a highly pathogenic avian influenza (HPAI) outbreak may involve quarantine and movement controls for poultry products such as eggs. However, such disease control measures may disrupt business continuity and impact food security, since egg production facilities often do not have sufficient capacity to store eggs for prolonged periods. We propose the incorporation of a holding time before egg movement in conjunction with targeted active surveillance as a novel approach to move eggs from flocks within a control area with a low likelihood of them being contaminated with HPAI virus. Holding time reduces the likelihood of HPAI-contaminated eggs being moved from a farm before HPAI infection is detected in the flock. We used a stochastic disease transmission model to estimate the HPAI disease prevalence, disease mortality, and fraction of internally contaminated eggs at various time points postinfection of a commercial table-egg layer flock. The transmission model results were then used in a simulation model of a targeted matrix gene real-time reverse transcriptase (RRT)-PCR testing based surveillance protocol to estimate the time to detection and the number of contaminated eggs moved under different holding times. Our simulation results indicate a significant reduction in the number of internally contaminated eggs moved from an HPAI-infected undetected flock with each additional day of holding time. Incorporation of a holding time and the use of targeted surveillance have been adopted by the U.S. Department of Agriculture in their Draft Secure Egg Supply Plan for movement of egg industry products during an HPAI outbreak.
SN  - 0005-2086
UR  - http://dx.doi.org/10.1637/10191-041012-Reg.1
UR  - http://www.ncbi.nlm.nih.gov/pubmed/23402110
ID  - Malladi2012
ER  - 
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 <b:ShortTitle>Avian Dis.</b:ShortTitle>
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