Health types have traced several Salmonella outbreaks to various pet treats like pig ears and other chewies over the years.

Now, dry dog food has been linked to a Salmonella outbreak in humans.

From January 1, 2006–December 31, 2007, the U.S. Centers for Disease Control and Prevention and others investigated a total of 70 cases of Salmonella enterica serotype Schwarzengrund infection in humans in 19 states, mostly in the northeastern United States.

The source of the infection was dry dog food produced at a manufacturing plant in Pennsylvania, the first time contaminated dry dog food has been identified as a source of human Salmonella infections. CDC recommends that after handling pet foods, pet owners should wash their hands immediately, and infants should be kept away from pet feeding areas.