Cruise vacations offer unbeatable perks: endless food, non-stop fun, and the thrill of waking up in a new place every day. But the same conveniences that make cruising appealing also create the perfect storm for illness.

From stomach bugs to heat exhaustion, getting sick at sea is more common than most travelers think. Fortunately, a few smart precautions can keep your trip smooth and symptom-free.



Large crowds, confined spaces, and shared surfaces all increase the risk of spreading viruses. “Infections can move rapidly in cruise environments because guests are in close quarters for long periods,” said Dr. Shalom Sokolow, an emergency medicine physician with Northwell Health.

Norovirus, in particular, has a reputation for disrupting cruises—and it doesn’t take much to catch it. “Wash your hands thoroughly before eating and after touching common surfaces,” he advised.


Warm, soapy water is still the gold standard for hand hygiene. “People touch their faces constantly without realizing it,” said Dr. Eric Ascher, a family physician at Lenox Hill Hospital.

“Make it a habit to wash for at least 30 seconds and dry well.” Hand sanitizer is helpful but not a substitute—especially after using the bathroom or before meals.

Buffets may be one of cruising’s biggest draws, but they’re also risky if handled carelessly. “Shared utensils can easily transmit viruses and bacteria,” said Ascher. Using serving tools properly and avoiding food that looks exposed or overly handled can go a long way.

“Be cautious with anything that’s been sitting out too long—especially seafood and egg-based dishes,” Sokolow said.


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Hot weather and long hours outdoors can also wear you down if you’re not prepared. “The first thing to pack is sunscreen—and bring more than you think you’ll need,” said Ascher.

Reapply frequently, especially after swimming, and don’t forget spots like the ears, neck, and tops of feet. Hats, sunglasses, and lightweight long sleeves offer extra protection when UV levels spike.

Cruises often visit multiple countries in a short span, exposing travelers to unfamiliar germs. “You could be sharing space with people from all over the world, which increases the risk of catching something new,” said Sokolow.

He recommends checking in advance if any stops require or suggest vaccinations. “Staying up to date can prevent illnesses like hepatitis A or typhoid, depending on the region.”

Packing a mini medical kit can save you time, money and stress once you’re on board. Include basics like pain relievers, antihistamines, motion sickness meds and electrolyte packets.

Aloe vera, lip balm and hand sanitizer are also cruise must-haves. “A small supply of over-the-counter remedies can keep a minor issue from becoming a trip-ruiner,” said Ascher.


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Dehydration is another common problem on cruise ships—especially when alcohol and sun are in the mix. “Drink more water than you think you need, especially if you’re drinking alcohol,” said Ascher.

Rehydration powders or tablets are an easy way to replenish lost fluids. And if you’re feeling off, it might be motion sickness—not just last night’s daiquiris.

Even with precautions, stay alert to signs of illness in others. “If someone appears sick, it’s best to keep your distance,” said Sokolow.

That rule applies whether you’re in the dining room, on an excursion or at the pool. A little distance now could save your entire trip later.

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Have you ever gotten sick on a cruise? What are your go-to tips for staying healthy at sea? Drop a comment and share your thoughts.