Crowding pigs into factory farms likely led to the emergence of the H1N1 swine flu pandemic. So far, millions of people have been infected and thousands have died. Learn the inside story on the origins of swine flu and ways we can help prevent flu pandemics in the future.

The price of factory farmed meat doesn't reflect its true cost. This pandemic may be part of the price we're all paying for products from filthy industrial pig factories.

Pigs are often forced to live in huge warehouses, crammed together, awash in their own waste, and constantly stressed by their cruel treatment. These conditions provide a breeding ground for diseases that can then spread to people.

Flu shots and frequent handwashing can help protect you this flu season, but the best way to reduce the risk of future outbreaks may be to follow the advice of the American Public Health Association and declare "no more factory farms."