14.4 Personal Hygiene, Tropical Hygiene & Food Safety
Key Takeaways
- Personal hygiene for cabin crew is an operational control: hands are the principal transmission route in a cabin, and hand hygiene before food handling and after every lavatory or waste contact is the single most effective measure.
- Tropical hygiene precautions for crew operating in West Africa include malaria prevention, safe water and food practice, protection from insect bites, and yellow fever vaccination requirements for entry to Nigeria.
- Food poisoning is caused by pathogens or toxins in food and typically presents with nausea, vomiting, abdominal cramps and diarrhoea within hours of ingestion.
- Operators separate the meals eaten by the operating flight crew members precisely so that a single contaminated batch cannot incapacitate both pilots.
- Suspected food poisoning affecting several passengers or any crew member is reported to the flight deck immediately, samples and packaging are retained where possible, and the event is reported to the operator and the public health authority.
Terminology
The syllabus opens knowledge subject 14 with terminology, and examiners use the words precisely.
| Term | Meaning |
|---|---|
| Hygiene | Practices that preserve health and prevent disease, particularly by cleanliness |
| Pathogen | An organism capable of causing disease: bacterium, virus, fungus or parasite |
| Infection | Invasion and multiplication of a pathogen in the body |
| Contamination | The presence of a pathogen or harmful substance on a surface, in food or in water |
| Cross-contamination | Transfer of a pathogen from one item, surface or person to another |
| Communicable / transmissible disease | A disease that can be transmitted from person to person, directly or indirectly |
| Vector | An organism, typically an insect, that transmits a pathogen — the mosquito for malaria and yellow fever |
| Incubation period | The interval between exposure and the appearance of symptoms |
| Universal precautions | Treating all blood and body fluids as potentially infectious, regardless of what is known about the individual |
| Disinsection | Treatment of an aircraft cabin to kill insects, required by some States |
Personal hygiene as an operational control
A cabin is a confined space in which one crew member handles food, touches surfaces, assists passengers and manages waste, often within minutes. Hygiene is therefore an operational control rather than a matter of personal presentation.
Hand hygiene is the highest-value single measure. Wash or sanitise hands:
- Before handling food, ice, or any item that will be eaten or drunk;
- After every lavatory visit and after any lavatory or waste contact;
- After handling waste, refuse or a sick bag;
- After contact with blood, vomit or any body fluid, and after removing gloves;
- After touching high-contact surfaces during a passenger illness event;
- Between handling different food items where cross-contamination is possible.
Other personal measures: keep nails short and clean; tie hair back; cover cuts and abrasions with a waterproof dressing before duty; do not operate with an active gastrointestinal illness — a crew member vomiting or with diarrhoea is both unfit under 2.11.1.6 and a transmission risk in a galley; use gloves for waste, cleaning and any body fluid contact, and treat gloves as single-use.
Galley and food-handling hygiene
- Cold chain: chilled items are kept chilled, and items left out of temperature control beyond the operator's limit are discarded rather than served.
- Separation: raw and ready-to-eat items are never handled with the same gloves or utensils.
- Reheating: items are heated to the operator's specified temperature and time, not merely warmed.
- Ice and water: use only the approved supply. Water quality is controlled by the operator's approved sampling and disinfection programme, and ice from an unapproved source is a common cause of gastrointestinal illness.
- Waste: bagged, sealed and stowed in the designated waste stowage. Waste is never placed in a lavatory bin beyond its capacity, and never on a galley work surface.
- Sick bags: handled with gloves, sealed and disposed of in the designated waste, never in a galley bin used for catering.
- Surfaces: work surfaces are wiped with the approved product after any spillage and after any illness event.
Tropical hygiene
Nigerian cabin crew live and operate in a region where several health risks are endemic. The syllabus names tropical hygiene as an examinable topic.
| Risk | Practical precaution |
|---|---|
| Malaria | Transmitted by the Anopheles mosquito, which bites mainly between dusk and dawn. Precautions are bite avoidance — repellent, covering skin in the evening, air conditioning, nets — plus chemoprophylaxis where advised for the itinerary. Fever in or after a malarious area is malaria until proven otherwise and requires prompt medical assessment |
| Yellow fever | Vaccination is required for entry to many countries in the region and proof of vaccination may be demanded at the border. Crew must carry a valid certificate where the route requires it |
| Dengue, chikungunya and Zika | Transmitted by day-biting Aedes mosquitoes, so bite avoidance is a daytime as well as an evening measure |
| Typhoid, cholera and other water-borne disease | Drink only treated or bottled water; avoid ice from unknown sources; avoid uncooked salads and unpeeled fruit at layover stations with poor sanitation |
| Traveller's diarrhoea | The commonest crew illness on layover. Food and water discipline; rehydration is the treatment; do not operate while symptomatic |
| Heat illness | Hydration, shade, and awareness of the very high cabin temperatures on the ground before air conditioning is established |
| Schistosomiasis | Avoid swimming or wading in fresh water in endemic areas |
Each operator issues health guidance for its network. A crew member reporting for duty with a fever after a layover in a malarious area must be assessed rather than dosed with paracetamol and rostered.
Food poisoning
Recognition. Onset is typically within a few hours of ingestion. Symptoms are nausea, vomiting, abdominal cramps and diarrhoea, sometimes with fever. Two features distinguish it from ordinary travel sickness: multiple people affected, and a common meal in their history.
Management on board:
- Treat the individual — sick bags, tissues, cool cloth, small sips of water once vomiting settles, seat them near a lavatory if practicable, and use gloves and the universal precaution kit for any body fluid.
- Protect the cabin — contain and clean spillage with the universal precaution kit, bag and seal contaminated material, and hand-sanitise thoroughly.
- Look for a pattern — ask what and when they ate. Two or more passengers with the same symptoms and the same meal is an outbreak, not a coincidence.
- Notify the flight deck immediately with numbers affected, symptoms, the suspected meal and whether any crew member is affected.
- Retain evidence — where practicable, keep the meal, packaging and batch identification for the operator's investigation.
- Report to the operator and, on arrival, to the public health authority, since a catering-borne outbreak affects every flight served by that kitchen.
Flight crew meals. Operators require the operating pilots to eat different meals, prepared separately, and often at different times. The purpose is single-point-of-failure protection: a contaminated batch must not be capable of incapacitating both pilots on the same sector. Cabin crew must follow this rule exactly and must never substitute one flight crew meal for another because of a catering shortfall — the correct response to a shortfall is to tell the flight deck, not to solve it by serving identical meals.
Why do operators require the two operating pilots to eat different meals prepared separately?
Which precaution addresses the transmission route for malaria in West Africa?
A crew member has vomited twice during the layover and is due to operate the return sector. What is the correct position?
At what point should a crew member conclude that individual illness has become a suspected outbreak?