Cited at 2,580 of 56,625 graded Chicago inspections — 4.6% of them, the 27th most common violation in the city. Inspections citing it fail 58.7% of the time against a 27.5% baseline, making it a strong signal.
Violation 5 appears on the Chicago Department of Public Health’s inspection checklist as “Procedures for Responding to Vomiting and Diarrheal Events.” Its position on that form places it in the priority band — the city does not publish a severity field, so this is inferred from the code number, which is how the form itself is ordered.
Priority violations address the most direct routes to foodborne illness — temperature control, contamination, sick employees, unsafe sourcing. A single one can fail an inspection on its own.
Ranked by how often it is written up, violation 5 is 27th of 50. Ranked by how strongly it predicts a failure, it is 13th. It matters considerably more than its frequency suggests, which makes it easy to overlook on a busy report.
What is violation 5 in a Chicago health inspection?
Violation 5, "Procedures for Responding to Vomiting and Diarrheal Events", is one of the numbered items on the Chicago Department of Public Health's inspection checklist. By its position on that form it falls in the priority band. Priority violations address the most direct routes to foodborne illness — temperature control, contamination, sick employees, unsafe sourcing. A single one can fail an inspection on its own.
Is violation 5 serious?
Measured against outcomes, it is a strong signal. Inspections citing violation 5 ended in a failure 58.7% of the time, against a 27.5% baseline across 56,625 graded Chicago inspections — 2.14× ordinary risk. That places it among the strongest predictors of a failed inspection in the whole dataset.
How common is violation 5?
It is the 27th most-cited violation in Chicago, appearing at 2,580 of 56,625 graded inspections since 2022 — 4.6% of them.
Can a restaurant fail an inspection for violation 5 alone?
Yes. Priority violations address the most direct routes to foodborne illness, and a single one can fail an inspection on its own.
The city publishes the records but not these rates. They were derived from 56,625 inspections since 2022 with a graded result of Pass, Pass w/ Conditions or Fail, with each violation string parsed for its leading code number. The rate above is the share of inspections citing violation 5 that ended in a failure. A single inspection commonly cites several violations, so codes are not mutually exclusive. Anyone can reproduce this from the dataset linked above.