Salmonella in the US is [more often] due to greens [than] chicken.
Do you have any data on rates of salmonella from chicken, specifically, in both regions?
Edit:
"Chicken, beef and pork account for just 33% of salmonella poisonings in the United States, according to the U.S. Department of Agriculture"
https://www.mnn.com/food/healthy-eating/blogs/foods-more-lik...