Canadian farm culls 500 swine flu-infected pigs

Five-hundred hogs quarantined on an Alberta farm after they were diagnosed with swine flu have been culled because of overcrowding. Authorities said Saturday that the quarantine left the farm unable to ship hogs to market, resulting in an overpopulation of pigs. They say it was the best course of action for the herd's welfare. The remaining herd of 1,700 pigs is still under quarantine.