David Nabarro, one of the most senior public health experts at the World Health Organisation, said outbreaks of bird flu, which have killed at least 65 people in Asia, could mutate into a form transmittable between people.
“The consequences in terms of human life when the pandemic does start are going to be extraordinary and very damaging,” he said.
He told the BBC that the “range of deaths could be anything between five and 150 million”.
https://www.theguardian.com/world/2005/sep/30/birdflu.jamessturcke