Mexico Swine-flu outbreak linked to Smithfield factory farms LINK  AND INFO FROM "grist.org" Is Smithfield Foods, the world’s largest pork packer and hog producer, linked to the outbreak? Smithfield operates massive hog-raising operations Perote, Mexico, in the state of Vera Cruz, where the outbreak originated. "According to physicians from the state of Vera Cruz and the Mexican health agency IMSS, the epidemic's vector could be the clouds of flies created by hog CAFOs and the manure l...