Seasonal risk of low pathogenic avian influenza virus introductions into free-range layer farms in the Netherlands.

ABSTRACT: Poultry can become infected with avian influenza viruses (AIV) via (in) direct contact with infected wild birds. Free-range chicken farms in the Netherlands were shown to have a higher risk for introduction of low pathogenic avian influenza (LPAI) virus than indoor chicken farms. Therefore, during outbreaks of highly pathogenic avian influenza (HPAI), free-range layers are confined indoors as a risk mitigation measure. In this study, we characterized the seasonal patterns of AIV introductions into free-range layer farms, to determine the high-risk period. Data from the LPAI serological surveillance programme for the period 2013-2016 were used to first estimate the time of virus introduction into affected farms and then assess seasonal patterns in the risk of introduction. Time of introduct

SUBMITTER: Gonzales JL 

PROVIDER: S-EPMC8048991 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature