03.04.2012

In a poster presented at the 8th International Symposium on Avian Influenza, Parker et al. reports an outbreak of low pathogenic H9N1 in broiler breeders in December 2010 in East Anglia.
LPAI viruses of H9 subtype have also been isolated from several duck species in The Netherlands. Drop in egg production was recorded in the flock (17,157 birds). Phylogenetic analysis of the HA and NA genes indicated North American and Euroasian origins for these two genes, which suggested that this AIV may be a reassortment that consists of genetic segments of diverse geographic origin.
Attempts to isolate the virus were unsuccessful.

This is the first report of an H9 subtype avian influenza infection in poultry in England.