Every day there is at least one new recall right here in the US. Just like everything else under the sun, it is ramping up. Why?
The US recalls usually have to do with possible peanut dust not included on the list of ingredients or illegals out in the field tainting the veggies with feces.
Mass production- illegal invaders crapping in the fields while picking produce, contaminated water supply systems (recent article about that), lack of thorough I section due to mass produce, lack of controls on home grown and made products. More people in the world, more cases. A lot of the big cases of ecoli come down to Contaminated water at some point in the process.