Recent E. coli outbreaks at McDonald's and other food establishments have raised concerns about food safety. While regulatory agencies like the FDA work to ensure a safe food supply, some experts point out that underfunding and pressure from industry groups can hinder their efforts. Additionally, the rise of pre-prepared meals and changing consumer habits may contribute to the growth of bacteria like Listeria.

Source: https://www.popsci.com/health/e-coli-mcdonalds/