Bird Flu Fears

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A poll finds large segments of the populations in the United States and several European countries are concerned about the spread of bird flu.

An Ipsos poll conducted before the disease had spread to Europe found those in Spain and Italy are the most concerned. About half the people in those countries say they're worried.

Only a third in the United States expressed worry.

Roughly four in ten in Britain and France and three in ten in Germany say they're concerned.

A third of people in the U.S. and France say they don't know enough about bird flu to have an opinion, while a fourth in Britain and Spain say they don't know enough about it.

Scientists fear the virus, which so far has been spread primarily to poultry workers by infected birds, could mutate into a more contagious form and lead to a pandemic.