The story

More than a week after the swine flu outbreak rattled the world, with cases of infected people popping up from Mexico to South Korea, the new virus strain has shown up in a herd of swine.

The catch, Canadian officials say, is that the animals may have caught the flu from a human.

Canadian officials on Saturday said they have quarantined pigs that tested positive for the virus -- scientifically known as 2009 H1N1 -- at an Alberta farm in what could be the first identified case of pigs infected during the recent outbreak. They said the pigs may have been infected by a Canadian farmer who recently returned from a trip to Mexico, the epicenter of the outbreak that has sickened nearly 660 people. Read full article »

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