Picture this: you are managing a restaurant with a salad bar and you just found out one of your food handlers who has been prepping ingredients — cutting carrots, trimming lettuce, portioning out salad dressing — has tested positive for Hepatitis A. Worse, apparently they have been contagious for weeks before any symptoms ever showed.
Guests who visited during that window may need to be notified. The local health department/ regulatory authority gets involved. The story reaches local news. And the entire situation traces back to one missed step: the illness was never reported to you before that contaminated carrot reached a guest’s mouth.
That’s the stakes behind this lesson. Not every sick food handler is that dangerous — many illnesses just call for common sense and a day off. But a few specific conditions are dangerous enough that ServSafe spells out exactly what a manager has to do, and getting it wrong can look exactly like the story above.
The Three Zones: Green, Yellow, Red
Think of employee health like a stoplight.
- Green — business as usual. Most minor stuff — a cold with no fever, for instance — doesn’t require pulling someone off the line, and doesn’t need to be reported the way the specific conditions below do. What staff do need is to know exactly which symptoms, diagnoses, and exposures are on the reportable list — and to report promptly the moment one applies to them.
- Yellow — restrict. The food handler stays on shift, but can’t work with exposed food, clean utensils, or clean equipment. They can still bus tables, run register, do dishes that are already dirty, or handle other tasks that don’t touch anything food-contact.
- Red — exclude. The food handler can’t be in the operation at all until specific conditions are met to bring them back.
Everything below is about how to tell which zone you’re in.
Reporting Comes First
Every one of these decisions depends on one thing happening first: the food handler has to actually tell you. Staff must report required health problems before they come to work — this includes someone who was just hired and hasn’t started their first shift yet. They also have to tell you immediately if they get sick during a shift.
A regulatory authority can ask you to prove you’ve communicated this requirement to staff. Acceptable proof includes any of:
- Signed statements where staff have agreed to report illness
- Documentation showing staff completed training that covered why reporting matters
- Posted signs or pocket cards reminding staff to notify a manager when they’re sick
BUT WHAT IF the food handler isn’t sick themselves — they just live with someone who is? They still have to tell you — and depending on the pathogen and the circumstances, that exposure alone can lead to restriction, even though the employee isn’t sick and hasn’t been diagnosed with anything themselves. Staff must report if they live with someone who’s been diagnosed with an illness from Norovirus, Shigella spp., Shiga toxin-producing E. coli (STEC), Salmonella Typhi, or Hepatitis A. There’s exactly one exception: nontyphoidal Salmonella does not trigger the household-contact reporting rule, even though it’s one of the six pathogens covered elsewhere on this page. If you’re wondering why that one’s carved out and the other five aren’t — the source doesn’t explain the reasoning, and neither should you invent one for students. Just teach it as the one clean exception it is.
As a manager, don’t just wait to be told. Watch for the signs yourself: vomiting, excessive trips to the bathroom, yellowing of the skin, eyes, or fingernails, cold sweats or chills (a possible sign of fever), and persistent nasal discharge or sneezing.
Yellow: What Gets You Restricted
Restriction means: stay off exposed food, clean utensils, and clean equipment. Everything else is still fair game.
Restrict a food handler who has:
- An infected wound or boil that isn’t properly covered — the flip side is worth stating directly: a wound that is properly covered doesn’t require restriction on its own
- A sore throat with fever
- Persistent sneezing, coughing, or a runny nose that’s causing discharge from the eyes, nose, or mouth
BUT WHAT IF it’s a sore throat without a fever? The specific trigger here is sore throat with fever — without the fever, it doesn’t automatically fall into this restriction rule. That doesn’t mean ignore it. The food handler should still say something, and a manager should use ordinary judgment if the person genuinely seems unwell.
Red: What Gets You Excluded
Exclusion means: the food handler cannot be in the operation, period, until they meet specific return-to-work conditions.
Exclude a food handler who has at least one of these symptoms from an infectious condition:
- Vomiting
- Diarrhea
- Jaundice (yellowing of the skin or eyes)
Notice that word “at least one” — you don’t need two or three of these together. Any single one, on its own, is enough to trigger exclusion.
One caveat worth knowing: this is specifically about vomiting or diarrhea from an infectious condition. If either one is known to come from a documented noninfectious cause, different rules can apply. That determination isn’t something to guess at — it’s a medical one.
Getting back to work after vomiting or diarrhea requires one of:
- No symptoms for at least 24 hours, or
- A written release from a medical practitioner
Jaundice gets stricter handling, and there’s a reason for it. Jaundice must be reported to the regulatory authority. If the jaundice began within the last seven days, the food handler is excluded — and coming back requires both a written release from a medical practitioner and approval from the regulatory authority, not just one or the other.
Why the extra layer? Jaundice can be a visible symptom of Hepatitis A — the same pathogen from the opening story, the one that can spread for weeks before any symptom shows at all. By the time jaundice is visible, the exposure window may already be much larger than it looks.
One more thing: excluding or restricting the employee only controls what happens next. You still have to think about what happened before you caught the problem. If food was handled by an employee who should not have been handling it because of an illness restriction or exclusion, discard it. The same goes for food contaminated by hands or bodily fluids. That isn’t something you fix by cooking it a little longer, wiping something off, or deciding it still looks fine. Contaminated food goes in the trash.
Six Named Pathogens: Diagnosis Changes the Picture
Up to this point, we’ve mostly been talking about what you can see: somebody’s vomiting, has diarrhea, has a fever, looks jaundiced, or has something nasty happening with a wound. The Big 6 are different.
If somebody tells you, “Chef, my doctor says I have Norovirus,” we’re done playing symptom detective. The diagnosis itself matters.:
- Norovirus
- Shigella spp.
- Nontyphoidal Salmonella
- Shiga toxin-producing E. coli (STEC)
- Hepatitis A
- Salmonella Typhi
If the food handler has symptoms — vomiting or diarrhea — along with the diagnosis: exclude, and report the situation to the regulatory authority. That part is straightforward.
BUT WHAT IF the food handler was diagnosed but never actually got sick — or already recovered? This isn’t a hypothetical. Some food handlers diagnosed with one of these six pathogens may never experience symptoms, or their symptoms may have already ended by the time they’re diagnosed. In that situation, the outcome isn’t automatically exclusion. It can be restriction or exclusion depending on the specific pathogen and the population the operation serves. The correct managerial response for any of these six is the same: report it, and let the medical practitioner and regulatory authority make the call. Don’t try to improvise that decision yourself.
Diagnosed + symptomatic: exclude and report.
Diagnosed + no symptoms: report it. Restriction or exclusion may be required depending on the pathogen and operation.
That “may never experience symptoms” detail is part of what makes carriers so important in food safety. A carrier is someone who carries and can spread a pathogen even though they aren’t currently showing symptoms.
This is exactly why these six pathogens — the same Big 6 from the pathogens you already know by name — get special treatment here instead of falling under the general “vomiting or diarrhea” rule above. A person can be actively contagious with one of these and look and feel completely fine.
Putting It Together: A Real Decision
Two prep cooks call in sick on the same morning. Because apparently Saturday brunch wasn’t already going well enough.
Cook A: “Chef, my throat’s a little scratchy, but I don’t have a fever. I feel fine. Can I come in?”
Yes. A scratchy or sore throat without a fever doesn’t automatically trigger restriction. Tell them to come in, keep an eye on it, and — this part matters — tell you immediately if anything changes. We’re managing food safety here, not handing out perfect-attendance trophies.
Cook B: “Chef, my throat is killing me and I’ve got a fever.”
Well, crap.
That little addition — fever — changes the answer. Now we’re at restrict. Cook B can still work, but they’re staying far away from exposed food, clean utensils, and clean equipment. Find them something else to do.
Unless you’re feeding a high-risk population, like residents in a nursing home. Then Cook B isn’t getting reassigned to the register. They’re going home.
Same kitchen. Same morning. Almost the same complaint.
One fever changes the answer.
That’s why “they seem sick” isn’t a food-safety rule. The details matter. Know what you’re actually dealing with, then make the call the rules require.
Important: An asymptomatic Big 6 diagnosis doesn’t fit neatly into either column. Depending on the pathogen and the population the operation serves, the employee may be restricted or excluded. Report it and work with the medical practitioner and regulatory authority.
What You Actually Need to Remember
- Reporting comes first — for the symptoms, diagnoses, and household exposures on the reportable list. Household exposure to five of the Big 6 must be reported; nontyphoidal Salmonella is the exception.
- Restrict = stay in the building, off exposed food and clean equipment. Exclude = can’t be in the operation at all.
- A single symptom — just vomiting, just diarrhea, or just jaundice from an infectious cause — is enough on its own to trigger exclusion.
- Recent-onset jaundice gets especially strict handling: when it began within the last seven days, returning requires medical documentation and regulatory approval
- A Big 6 diagnosis without symptoms doesn’t have one fixed answer. It can mean restriction or exclusion depending on the pathogen and who the operation serves.
- When a Big 6 diagnosis enters the picture, report it and involve the regulatory authority. Don’t guess.
- This chart is a guide, not the final word — always work with your local regulatory authority to determine the right course of action.
Study Guide
