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The impact of viral tropism and housing conditions on the transmission of three H5/H7 low pathogenic avian influenza viruses in chickens

(2013) EPIDEMIOLOGY AND INFECTION. 141(11). p.2428-2443
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Abstract
In this study, shedding and transmission of three H5/H7 low pathogenic avian influenza viruses (LPAIVs) in poultry was characterized and the impact of floor system on transmission was assessed. Transmission experiments were simultaneously conducted with two groups of animals housed on either a grid or a floor covered with litter. Transmission was observed for H5N2 A/Ch/Belgium/150VB/99 LPAIV. This virus was shed almost exclusively via the oropharynx and no impact of floor system was seen. Transmission was also seen for H7N1 A/Ch/Italy/1067/v99 LPAIV, which was shed via both the oropharynx and cloaca. A slight increase in transmission was seen for animals housed on litter. H5N3 A/Anas Platyrhynchos/Belgium/09-884/2008 LPAIV did not spread to susceptible animals, regardless of the floor system. This study shows that environmental factors such as floor systems used in poultry barns may act upon the transmission of LPAIVs. However, the level of influence depends on the virus under consideration and, more specifically, its principal replication sites.
Keywords
SURVIVAL, VACCINE, INFECTION, H5N1, QUANTIFICATION, WATER, POULTRY, JAPANESE-QUAIL, A VIRUS, SWINE-FEVER VIRUS, virus tropism, transmission, Floor system, H5 and H7 low pathogenic avian influenza virus, reproduction ratio, real-time RT-PCR

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Chicago
Claes, Gerwin, Sarah Welby, Thierry van den Berg, Yves Van der Stede, Jeroen Dewulf, Bénédicte Lambrecht, and Sylvie Marché. 2013. “The Impact of Viral Tropism and Housing Conditions on the Transmission of Three H5/H7 Low Pathogenic Avian Influenza Viruses in Chickens.” Epidemiology and Infection 141 (11): 2428–2443.
APA
Claes, G., Welby, S., van den Berg, T., Van der Stede, Y., Dewulf, J., Lambrecht, B., & Marché, S. (2013). The impact of viral tropism and housing conditions on the transmission of three H5/H7 low pathogenic avian influenza viruses in chickens. EPIDEMIOLOGY AND INFECTION, 141(11), 2428–2443.
Vancouver
1.
Claes G, Welby S, van den Berg T, Van der Stede Y, Dewulf J, Lambrecht B, et al. The impact of viral tropism and housing conditions on the transmission of three H5/H7 low pathogenic avian influenza viruses in chickens. EPIDEMIOLOGY AND INFECTION. 2013;141(11):2428–43.
MLA
Claes, Gerwin, Sarah Welby, Thierry van den Berg, et al. “The Impact of Viral Tropism and Housing Conditions on the Transmission of Three H5/H7 Low Pathogenic Avian Influenza Viruses in Chickens.” EPIDEMIOLOGY AND INFECTION 141.11 (2013): 2428–2443. Print.
@article{4199148,
  abstract     = {In this study, shedding and transmission of three H5/H7 low pathogenic avian influenza viruses (LPAIVs) in poultry was characterized and the impact of floor system on transmission was assessed. Transmission experiments were simultaneously conducted with two groups of animals housed on either a grid or a floor covered with litter. Transmission was observed for H5N2 A/Ch/Belgium/150VB/99 LPAIV. This virus was shed almost exclusively via the oropharynx and no impact of floor system was seen. Transmission was also seen for H7N1 A/Ch/Italy/1067/v99 LPAIV, which was shed via both the oropharynx and cloaca. A slight increase in transmission was seen for animals housed on litter. H5N3 A/Anas Platyrhynchos/Belgium/09-884/2008 LPAIV did not spread to susceptible animals, regardless of the floor system. This study shows that environmental factors such as floor systems used in poultry barns may act upon the transmission of LPAIVs. However, the level of influence depends on the virus under consideration and, more specifically, its principal replication sites.},
  author       = {Claes, Gerwin and Welby, Sarah and van den Berg, Thierry and Van der Stede, Yves and Dewulf, Jeroen and Lambrecht, B{\'e}n{\'e}dicte and March{\'e}, Sylvie},
  issn         = {0950-2688},
  journal      = {EPIDEMIOLOGY AND INFECTION},
  keyword      = {SURVIVAL,VACCINE,INFECTION,H5N1,QUANTIFICATION,WATER,POULTRY,JAPANESE-QUAIL,A VIRUS,SWINE-FEVER VIRUS,virus tropism,transmission,Floor system,H5 and H7 low pathogenic avian influenza virus,reproduction ratio,real-time RT-PCR},
  language     = {eng},
  number       = {11},
  pages        = {2428--2443},
  title        = {The impact of viral tropism and housing conditions on the transmission of three H5/H7 low pathogenic avian influenza viruses in chickens},
  url          = {http://dx.doi.org/10.1017/S0950268813000125},
  volume       = {141},
  year         = {2013},
}

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