From Newsgroup: talk.origins

https://www.cidrap.umn.edu/avian-influenza-bird-flu/usda-says-h5-detection-wisconsin-dairy-herd-new-spillover-event

They are finally releasing the sequence results for the newly infected Wisconsin herd and they claim that it is a different D1.1 infection
event. They do not release the results, nor what sequence comparisons
that they did. The Nevada and Arizona herds were the same D1.1
infection event and the virus probably spread to Nevada and then to
Arizona dairy herds. Neither state restricted dairy worker movements,
and Nevada was infected with the same lineage of D1.1 as a Wyoming farm
worker and a Washington poultry worker. The Washington poultry workers
caught in Oregon were found to be infected and sent back to Washington (Washington had not restricted the farm worker movements). Obviously,
some infected workers were not detected and left the state and infected Wyoming and Nevada, but the contact tracing nor epidemiological study
was never done. The contact tracing was never done and the farm workers
were never restricted from leaving the infected farms. That is likely
how Arizona got infected with the Nevada dairy virus. They never
identified animal movements. Multiple commercial poultry flocks got
infected in Arizona in the same county that had the infected dairies
because they never restricted farm worker movements. Just because they
don't want to know the answer is no reason why they should not have
started a dairy worker testing and quarantine procedure.

More commercial flocks keep going down, but they are not doing any epidemiological studies nor contact tracing to try to figure out how the flocks are getting infected. It just seems crazy at this late date that
they are still allowing so many poultry farm infections because they
refuse to start a farm worker testing program.

Ron Okimoto

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