This is the best summary I could come up with:

The World Health Organization has raised concerns about the spread of H5N1 bird flu, which has an “extraordinarily high” mortality rate in humans.

Most recently, the spread of the virus within several mammal species, including in domestic cattle in the US, has increased the risk of spillover to humans, the WHO said.

“This remains I think an enormous concern,” the UN health agency’s chief scientist, Jeremy Farrar, told reporters in Geneva.

Cows and goats joined the list of species affected last month – a surprising development for experts because they were not thought susceptible to this type of influenza.

He said efforts were under way towards the development of vaccines and therapeutics for H5N1, and stressed the need to ensure that regional and national health authorities around the world had the capacity to diagnose the virus.

This was being done so that “if H5N1 did come across to humans, with human-to-human transmission”, the world would be “in a position to immediately respond”, Farrar said, calling for equitable access to vaccines, therapeutics and diagnostics.

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