There would also be no outbreak if farmers immunized their animals against salmonella. See https://www.newscientist.com/article/dn23165-us-should-vaccinate-pou

There would also be no outbreak if farmers immunized their animals against salmonella. See https://www.newscientist.com/article/dn23165-us-should-vaccinate-poultry-to-stop-killer-salmonella/ https://www.newscientist.com/article/dn23165-us-should-vacci... for more.