Yahoo! News - Flu Pandemic Inevitable, Plans Needed Urgently -WHO
BANGKOK (Reuters) - Every country in the world must come up urgently with a plan to deal with an inevitable influenza pandemic likely to be triggered by the bird flu virus that hit Asia this year, a top global health expert said on Friday.

"I believe we are closer now to a pandemic than at any time in recent years," said Shigeru Omi, regional director for the Western Region of the World Health Organization (WHO).

The H5N1 virus, which has already killed 20 Vietnamese and 12 Thais, arrived in Asia about a year ago, probably spread by migrating birds, especially wild fowl heading to warmer climes at the onset of the northern winter.

Experts say a pandemic will emerge from an animal, most probably a pig, which can harbor both flu viruses that affect humans and the avian flu variety. The two would mate and produce a virus to which people have no immunity, they say.

That has not happened yet, but Omi said the geographical spread and the impact of the H5N1 virus was unprecedented and had struck animals such as tigers and domesticated cats not previously known to be susceptible to avian flu viruses.

I always think of "The Stand" when I read stuff like this.