Illness spreads fast on a cruise because people live close together, share dining spaces, and touch the same railings and door handles for a week or more
The main culprits are norovirus, influenza, and respiratory infections — all spread through close contact or contaminated surfaces. You cannot avoid other passengers, but you can reduce your risk by washing your hands often, keeping distance when someone is coughing, and understanding which areas of the ship carry the highest risk. Most people who get sick on a cruise recover within a few days, but the illness ruins the trip and can spread to your family when you return home.
The good news is that cruise lines have cleaning protocols, and your own habits matter more than the ship's size or reputation. A few specific actions — done consistently — cut your risk sharply.
Key Takeaways
- Wash your hands with soap and water for at least 20 seconds after using the bathroom, before eating, and after touching railings or elevator buttons.
- Avoid the buffet line during the first and last days of the cruise, when illness is most common on the ship.
- Stay away from the dining room if you feel any stomach symptoms, and report illness to the ship's medical staff so they can track outbreaks.
- Bring your own hand sanitizer and disinfectant wipes, because ship supplies run out when illness spreads.
- Sleep enough and eat regular meals — fatigue and poor nutrition weaken your immune system and make infection more likely.
Wash your hands the right way and at the right times
Hand washing is the single most effective defense. Use soap and warm water, not hand sanitizer alone, because soap physically removes germs from your skin. Wash for at least 20 seconds — count to 20 or hum the "Happy Birthday" song twice. Sanitizer works when soap is not available, but it does not remove all types of germs and does not work well on visibly dirty hands.
Wash after using the bathroom, before eating, after touching railings or elevator buttons, after shaking hands, and after returning to your cabin from public areas. On a cruise, you touch surfaces that hundreds of other people have touched that day. Your face, mouth, and eyes are the entry points for infection, so keep your hands away from your face until you have washed them.
Hand sanitizer dispensers are posted throughout the ship, but they often run empty during busy times or when illness is spreading. Bring a travel-size bottle of hand sanitizer and a pack of disinfectant wipes for your cabin and your pocket.
Avoid high-risk food and dining situations
The buffet is the highest-risk food source on a cruise because many people touch the same serving spoons, tongs, and sneeze guards. If someone with norovirus or another stomach illness has touched the spoon, the next person can pick up the virus. The buffet is especially risky on the first and last days of the cruise, when the most people are boarding or leaving and illness is being introduced or spread back to port.
Sit-down dining in the main restaurant is safer because servers handle the serving utensils and your food is plated in the kitchen. If you prefer the buffet, go during off-peak hours (mid-afternoon rather than lunch or dinner rush) when fewer people are there, and watch the staff — if they are not regularly replacing serving utensils, move to a different station.
Do not eat from the buffet if you see someone coughing or sneezing near the food, and do not touch your face while you are in the buffet line. Wash your hands when ready after eating.
Keep distance from sick people and report illness
If someone near you is coughing or sneezing, move away. Respiratory droplets travel about 6 feet, so sitting across a table from someone who is coughing puts you at risk. In elevators and narrow hallways, step back or wait for the next elevator if someone is visibly ill.
If you feel sick — nausea, vomiting, diarrhea, fever, or a persistent cough — report it to the ship's medical office or your cabin steward. The ship tracks illness to prevent outbreaks, and reporting helps them isolate cases and clean affected areas. Do not go to the dining room, the buffet, or group activities if you have stomach symptoms. Stay in your cabin, drink water, and rest. Most cruise ship illnesses last 24 to 48 hours.
If you are sick, wear a mask in common areas if you must leave your cabin. Masks reduce the spread of respiratory droplets and show other passengers that you are trying not to infect them.
Sleep, hydration, and nutrition protect your immune system
Fatigue weakens your immune system and makes you more likely to catch an infection. Cruise schedules are full — ports, activities, late dinners, and entertainment — but sleep is not optional if you want to stay healthy. Aim for 7 to 8 hours a night, even if it means skipping one activity or going to bed early.
Drink water constantly. The ship's air is dry, and dehydration stresses your body and makes infection more likely. Bring a refillable water bottle and fill it at the cabin tap or at water stations throughout the ship. Avoid excessive alcohol, which dehydrates you and impairs your immune response.
Eat regular meals with vegetables, protein, and whole grains. Skipping meals or eating only snacks and fried food leaves your body without the nutrients it needs to fight infection. The ship has plenty of food, so eat well.
Prepare before you board
Get a flu shot at least two weeks before your cruise. The flu vaccine does not prevent all cases, but it cuts your risk and makes infection milder if you do catch it. If you have a chronic illness or are over 65, talk to your doctor about other vaccines you might need.
Pack a small medical kit: over-the-counter stomach medicine (like bismuth subsalicylate), fever reducer (acetaminophen or ibuprofen), cough drops, tissues, and any prescription medications you take. The ship has a medical office and a small pharmacy, but supplies are limited and prices are high. Bring enough of your own medications for the entire trip plus a few extra days in case you are delayed returning home.
Check the cruise line's website for any reported illness outbreaks on your specific ship in the weeks before you sail. If there is an active outbreak, you can cancel or rebook, depending on your ticket terms.
Clean your cabin and high-touch surfaces
Your cabin is your safest space. Wipe down the door handle, light switches, remote control, and bathroom surfaces with disinfectant wipes when you arrive. These are the surfaces you touch most often and the ones housekeeping may not clean thoroughly between guests.
Ask your cabin steward to clean more frequently if illness is spreading on the ship. Most will do this without charge. Wipe your hands on a clean towel after touching shared surfaces like the cabin phone or the television remote.
Keep your cabin door closed and your window open if you have one. Fresh air reduces the concentration of airborne germs in your room.
Frequently Asked Questions
What should I do if I start feeling sick during the cruise?
Report to the ship's medical office when ready. Stay in your cabin, drink water, and rest. Most cruise ship illnesses last 24 to 48 hours. The medical office can provide over-the-counter medication and monitor you. Do not go to dining areas or group activities until you have been symptom-free for at least 24 hours.
Is hand sanitizer enough, or do I need to wash with soap and water?
Soap and water is more effective because it physically removes germs. Hand sanitizer works when soap is not available, but use soap whenever you can. Wash for at least 20 seconds, especially after using the bathroom and before eating.
Can I catch illness from touching the elevator button or railing?
Yes. Many people touch the same surfaces every day, and germs can survive on metal and plastic for hours. Wash your hands after touching railings, elevator buttons, and door handles. Do not touch your face until you have washed.
Should I wear a mask on the cruise?
Masks are not required on most cruises, but wearing one reduces your risk if illness is spreading on the ship. Wear a mask in crowded areas like the buffet, elevators, and the dining room if you are concerned. If you are sick, wear a mask to reduce the spread to others.
Is the ship's food safe if I have a weak immune system?
The ship's kitchen follows food safety rules, but buffets carry higher risk than sit-down dining. If you have a weak immune system, eat in the main restaurant where servers handle the food, avoid the buffet, and ask the kitchen staff about food preparation if you have concerns. Talk to your doctor before cruising if you are immunocompromised.