Aphaluck Bhatiasevi
Aphaluck Bhatiasevi
adapting birds causing continue itself load reducing shed vaccines virus whether
We don't know whether the use of vaccines is reducing the viral load and not causing birds to die, or if the birds may continue to shed virus without symptoms. We don't know if the virus is adapting itself into the poultry.
areas exposed indicate infected large likelihood obvious poultry signs
There is a likelihood that they were exposed to infected poultry but there were no obvious signs of large poultry die-offs to indicate that poultry in those areas had been infected.