"you must work for DEFRA with your comment!" - rather a strange comment to make however I don't work for DEFRA. I do however have qualifications in biological science and environmental sciences and worked in the food industry for 37 years in technical roles; so I do have some understanding of the issue and the subsequent problems related to it.
"... up to last week the last case was at the beginning of April! " - This show that the biosecurity measures introduced by DEFRA are working. Isolation and containment are the most effective control measures for any viral infection whether it be Bird Flu, Covid or even Ebola. Rapid spread of a virus like bird flu runs the risk of a more serious mutations developing. It could be argued that ineffective control measures are responsible for the ongoing bird flu epidemic in the USA which started over a year ago are responsible for the decimation of their flocks and the spread of the virus into dairy cattle; not to mention the one attributable death of a poultry worker from the virus.
"The hens have been housed for months now" - A virus can only be dealt with through the application of science, not emotion. I presume you know the symptoms through which a chicken will die from bird flu - that is the alternative. Wild birds and waterfowl are much more resilient to the virus than chickens and turkeys however they can act as a reservoir for the virus and don't display the severe symptoms; but they can readily infect domestic birds through contact. Hence the precautions.
"Lets kill thousands of birds because 1 has a cold.... Good job they did not do that to us during covid." - During Covid there was eventually an aid which could mitigate the effect - a vaccination. Unfortunately such a solution is not viable for commercial flocks of chickens, turkeys, geese, ducks etc however I am sure someone will be working on a solution involving an addition to their water or feedstuffs which will eliminate or mitigate the effects and consequences of this virus.
