tetano
Editor, Senior Moderator
Avian Dis. 2016 Jun;60(2):460-6. doi: 10.1637/11351-121715-Reg.
[h=1]Factors Associated with Highly Pathogenic Avian Influenza H5N2 Infection on Table-Egg Layer Farms in the Midwestern United States, 2015.[/h] Garber L[SUP]1[/SUP], Bjork K[SUP]1[/SUP], Patyk K[SUP]1[/SUP], Rawdon T[SUP]2[/SUP], Antognoli M[SUP]1[/SUP], Delgado A[SUP]1[/SUP], Ahola S[SUP]1[/SUP], McCluskey B[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] A case-control study was conducted among commercial table-egg layer and pullet operations in Iowa and Nebraska, United States, to investigate potential risk factors for infection with highly pathogenic avian influenza (HPAI) H5N2. A questionnaire was developed and administered to 28 case farms and 31 control farms. Data were collected at the farm and barn levels, enabling two separate analyses to be performed-the first a farm-level comparison of case farms vs. control farms, and the second a barn-level comparison between case barns on case farms and control barns on control farms. Multivariable logistic regression models were fit using a forward-selection procedure. Key risk factors identified were farm location in an existing control zone, rendering and garbage trucks coming near barns, dead-bird disposal located near barns, and visits by a company service person. Variables associated with a decreased risk of infection included visitors changing clothing, cleaning and disinfecting a hard-surface barn entryway, and ceiling/eaves ventilation in barns.
[h=4]KEYWORDS:[/h] H5N2; avian influenza; highly pathogenic; risk factors; table-egg layers
PMID: 27309288 [PubMed - in process]
[h=1]Factors Associated with Highly Pathogenic Avian Influenza H5N2 Infection on Table-Egg Layer Farms in the Midwestern United States, 2015.[/h] Garber L[SUP]1[/SUP], Bjork K[SUP]1[/SUP], Patyk K[SUP]1[/SUP], Rawdon T[SUP]2[/SUP], Antognoli M[SUP]1[/SUP], Delgado A[SUP]1[/SUP], Ahola S[SUP]1[/SUP], McCluskey B[SUP]1[/SUP].
[h=3]Author information[/h]
[h=3]Abstract[/h] A case-control study was conducted among commercial table-egg layer and pullet operations in Iowa and Nebraska, United States, to investigate potential risk factors for infection with highly pathogenic avian influenza (HPAI) H5N2. A questionnaire was developed and administered to 28 case farms and 31 control farms. Data were collected at the farm and barn levels, enabling two separate analyses to be performed-the first a farm-level comparison of case farms vs. control farms, and the second a barn-level comparison between case barns on case farms and control barns on control farms. Multivariable logistic regression models were fit using a forward-selection procedure. Key risk factors identified were farm location in an existing control zone, rendering and garbage trucks coming near barns, dead-bird disposal located near barns, and visits by a company service person. Variables associated with a decreased risk of infection included visitors changing clothing, cleaning and disinfecting a hard-surface barn entryway, and ceiling/eaves ventilation in barns.
[h=4]KEYWORDS:[/h] H5N2; avian influenza; highly pathogenic; risk factors; table-egg layers
PMID: 27309288 [PubMed - in process]