It looks like enough damage through recalls due to salmonella from pig ears and other pet treats that because of the crossover to humans that handle the products something is now being done which is a step in the right direction! Canned food is not covered but we're moving up step by step!
It seems as if salmonella is found there can be penalties to the companies. This does not however cover treats that are imported so stay away from imports!
Read the full article in the below link.