I’ve read elsewhere that the supplier, Taylor Farms, hasn’t found e.coli in any of their own tests.
Regardless, they are screwed
Providing processed fresh vegetables to large corporations and retail outlets are low-margin businesses, that hold incredible asymmetric risk.
FDA and trial lawyers will come down on them like a ton of bricks.
Do you know what the odds are that multiple locations in different states all had such poor sanitary/handling procedures and practices at the same time versus contamination coming from one location? Okay I don’t know the odds either but I would bet very high. And knowing more than a little about McDonals sanitation and food handling procedures I would still bet on the supplier being the culprit, just like past vegetable related E- Coli outbreaks in other fast food operations.