The CDC will release a groundbreaking report this week showing that restaurant employees who work sick are the leading cause of foodborne illness outbreaks.
The study goes into depth on 800 outbreaks that took place between 2017 and 2019, using health department data and interviews conducted with the restaurant managers.
The researchers were only able to identify “contributing factors” (the closest the CDC will come to saying “a cause”) in about two thirds of cases. Of those cases, a whopping 41% involved an employee who worked in the restaurant while they were sick.
Most restaurants had some sort of policy, though it wasn’t always written. Very few were comprehensive enough to cover all five key symptoms outlined in the Food Code: vomiting, diarrhea, lesion with pus, sore throat with fever, and jaundice. Even fewer explicitly stopped employees from working if they had any of those symptoms, or required employees to inform their managers if they felt sick.
Employees cited loss of pay and perceived social pressure as the two most common reasons for working sick. Over half of the restaurants studied had no paid sick leave for employees.
Cool is key - Over 1 in 5 outbreaks had issues with improper or slow cooling after cooking, or improper cold holding temperatures.
Complexity matters - Outbreaks were more likely in restaurants with complicated prep processes that included cooking, cooling, and reheating.
Half of the restaurants studied had two or more critical violations on their most recent inspection. Restaurants with poor inspection results tend to have lax food safety protocols in general, which puts them at higher risk for an outbreak. These same critical violations are linked to the process issues around bacteria growth (cooling prepared food, holding temps, undercooking) and contamination (handwashing, glove use) that were a contributing factor in many of these outbreaks.