Avian Influenza Virus

Tested - The number of birds that were screened for avian influenza virus by real time reverse transcriptase PCR (RRT-PCR) for the M1 gene.

Matrix positive - The number of birds that tested positive for the M1 gene by RRT-PCR.

H5 positive - The number of birds that were confirmed to be positive for the H5 virus subtype by either DNA sequencing or virus isolation.*

H7 positive - The number of birds that were confirmed to be positive for the H7 virus subtype by either DNA sequencing or virus isolation.*

*Where the virus isolation and sequence data disagreed, the final H type was determined by DNA sequencing.