Did a US factory farm cause the swine flu outbreak?

The evidence is compelling. The first Mexican boy to come down with swine flu lived near a factory farm owned by Smithfield Foods. The WSJ reported:

. . . community members grew concerned because the farm was situated in a dust-filled valley, which they worried would lead to hog waste mixing with the dust and causing respiratory problems.

When it was learned that five-year-old La Gloria resident Edgar Hernandez had contracted swine flu, locals began blaming Smithfield. Some people complain that a lagoon filled with pig waste has a foul stench. Edgar's mother says the farm creates a problem of flies, and wants authorities to do something about it. (Her son no longer shows signs of being ill.)

This video raises further questions: