Vomiting Kitchen Assistant Before an 80-Guest Buffet
On Saturday a catering company prepares a cold buffet for 80 guests. A kitchen assistant reports vomiting at 7 a.m. but says she feels better by 10 a.m. and wants to work because the team is short-staffed. She is assigned to portion coleslaw and slice cooked ham. The company's staff health policy says 'exclude for 48 hours after symptoms stop' but the manager interprets this as 48 hours after the first symptom. The assistant has a 6-year-old child who was ill with diarrhoea and vomiting two days earlier. The kitchen has one toilet, which opens directly into the food prep area; the assistant used it before starting her shift and washed her hands at the prep sink. The buffet food is prepared at 11 a.m. and served at 1 p.m. without temperature control. The manager asks whether the assistant can work and what to do with the food.
1. Should the kitchen assistant work today? Give your reasoning.
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No, the assistant should not work today. Vomiting is a symptom of viral gastroenteritis, commonly norovirus, and the exclusion rule is normally 48 hours after the last symptom, not 48 hours after the first. The manager's interpretation is wrong. Feeling better by 10 a.m. does not mean the assistant is no longer infectious; she may still shed virus. The fact that her child had diarrhoea and vomiting two days earlier increases the likelihood that this is a viral illness. She should be sent home and must not handle food, food equipment or food contact surfaces. Using the prep sink for hand washing is also unacceptable: a dedicated hand-wash basin is needed, and the toilet opening directly into the food room is a structural risk. The assistant should be given clear return-to-work advice and recorded as excluded.
2. What should be done with the coleslaw and ham she was assigned to portion?
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Because she was assigned to portion coleslaw and slice cooked ham, those foods should be treated as contaminated. Any coleslaw or ham she handled should be discarded; if the food was not yet handled, it should be kept separate and handled only by another worker after hand washing. The prep area, scales, slicer, bowls and utensils she used should be cleaned and sanitised. The buffet should not be served with those items unless replacements are prepared by unaffected staff. The manager should record the discard and the reason, and check whether any of the food was already served. If it was, the manager should assess the exposure and seek advice; guests who ate the affected items may need to be informed.
3. What systemic changes would you recommend to prevent a repeat?
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Systemic changes should reduce reliance on individual judgement:
- Train managers on the actual exclusion rule: 48 hours after symptoms stop, and a risk assessment for household contact.
- Provide a written staff health questionnaire and return-to-work interview.
- Create a reporting culture so staff are not penalised for reporting illness, and arrange cover for short staffing.
- Provide a dedicated hand-wash basin in the food preparation area, and review the toilet location so it does not open directly into the food room; fit a lobby or self-closing door and mechanical ventilation.
- Include viral gastroenteritis in the HACCP-based safety management, with cleaning and disinfection procedures for vomit and diarrhoea.
- Keep exclusion and training records, and audit compliance.