Pre-Cruise Medical Checklist for Miami Travelers

Medically reviewed by Shane D. Naidoo, MD
Medical Director, TrufaMED Urgent Care & Concierge Medicine
Board-Certified, Emergency Medicine
Last reviewed: May 10, 2026

I work emergency medicine in Miami, which means I see the cases that come back from cruises. Most are minor: motion sickness, sunburn, the occasional bad shellfish night. A small number are not minor. The difference between the two often comes down to what people did, or did not do, in the two weeks before they boarded the ship.

This is the checklist I give patients in clinic. It applies whether you are leaving from PortMiami next month, joining a cruise that departs from another port, or considering an expedition voyage in the wake of the May 2026 hantavirus cluster on the MV Hondius. Some items are routine. A few are specific to the current public health environment.

Two to four weeks before departure

This is the window for vaccinations to take effect, prescriptions to be filled and tested for tolerance, and any deferred medical issues to be addressed. Boarding a cruise with an unresolved problem is not the same as boarding a flight. Cruise medicine on board is limited, evacuation is expensive and slow, and many ports do not have hospitals you would actually want to be admitted to.

• Routine vaccinations up to date. Tetanus within 10 years. Influenza if it is flu season at your destination. COVID-19 boosters if you are eligible and have not had one recently.
• Destination-specific vaccinations. Hepatitis A and typhoid for Caribbean and Latin American itineraries. Yellow fever if your itinerary includes any country that requires the certificate. Some vaccines need to be administered weeks in advance to be effective.
• Prescription medications stocked for the full trip plus a buffer. Bring a written list of all medications and doses. Carry copies in two separate bags.
• New prescription tolerance check. If your physician is starting you on something new for the trip (a sleep aid, an anti-anxiety medication for flying, or a malaria prophylaxis), test the dose at home a week before you leave. The middle of the ocean is not where you find out you have a paradoxical reaction.

One to two weeks before departure

Tighter window. Last-minute health items.

• Stock a personal first-aid kit. Anti-diarrheals (loperamide), oral rehydration salts, antacids, ibuprofen, acetaminophen, antihistamines, basic wound care, blister care, prescription antibiotics if your physician deems appropriate for traveler's diarrhea coverage.
• Motion sickness preparation. Scopolamine patches, meclizine, or natural alternatives. Apply or take the first dose before symptoms start, not after. Acupressure wristbands work for some patients.
• Travel insurance with medical evacuation coverage. Standard travel insurance often does not cover medical evacuation from a ship at sea, which can cost $50,000 to $250,000 out of pocket. A separate medical evacuation policy is inexpensive relative to that exposure.
• Refill your concierge or primary care physician on your itinerary. So they can be reached during the trip and have context if something happens that needs follow-up at home.

Specific risks to know about right now

Hantavirus and Andes virus

The May 2026 cruise ship cluster involved the Andes virus, which is the only hantavirus known to spread person-to-person. As of this writing the cluster is confined to one specific vessel (MV Hondius) and the CDC rates U.S. public risk as extremely low. There is no general guidance to cancel cruise travel.

If your itinerary involves expedition or smaller-vessel cruising, particularly to Antarctic or South American destinations, ask the cruise operator what their infection control protocols are and what their policy is if a passenger becomes symptomatic mid-voyage. We covered the symptom timeline and when to seek care in our companion article on hantavirus and cruise travel.

Norovirus

This is the most common cruise-ship infectious illness by a wide margin. It causes 24 to 48 hours of severe vomiting and diarrhea. Vaccination is not available. Prevention is hand hygiene with soap and water (alcohol gel does not kill norovirus reliably), avoiding raw or undercooked seafood, and being cautious about buffet handling. If you become symptomatic on board, report to the ship's medical staff promptly. Cruise lines have well-established norovirus protocols.

Influenza, COVID-19, and respiratory viruses

Cruise ships are enclosed environments with shared ventilation. Respiratory illness spreads easily. A current flu shot, an updated COVID booster if eligible, and a small supply of N95 masks for crowded indoor venues are reasonable precautions. If you arrive at the port with a fever or active respiratory symptoms, the cruise line may deny boarding. This is not unreasonable. Do not try to push through it.

Traveler's diarrhea

Affects up to 30 percent of travelers to certain destinations. Most cases are mild and self-limiting with hydration and over-the-counter symptom control. For higher-risk destinations or for travelers with conditions that make dehydration dangerous, your physician may prescribe a prophylactic or rescue antibiotic. Discuss before you leave.

Sunburn and heat illness

Caribbean sun is more intense than people remember. Pack a high-SPF mineral sunscreen and reapply. Heat exhaustion and heat stroke are the cause of more cruise medical evacuations than most people realize. Hydrate aggressively, particularly if you are drinking alcohol on deck.

What to do mid-cruise if something is wrong

Cruise ship medical centers vary widely in capability. Most can handle minor wound care, gastroenteritis, basic IV fluids, and stabilization for more serious problems. Few are equipped for complex emergencies. The decision tree for symptoms on board:

• Mild symptoms: Self-care, monitor. Hydrate.
• Persistent or worsening symptoms: Visit ship medical center. Costs are out of pocket.
• Severe symptoms (chest pain, severe shortness of breath, neurological changes, severe abdominal pain): Notify ship medical immediately. They will determine whether port disembarkation or medical evacuation is needed.

If you can reach your physician at home by satellite phone or shipboard internet, do it. Outside context on your case is useful even if the ship handles the immediate care.

What to do when you get back to Miami

For the eight weeks after a cruise, treat any unexpected fever, severe muscle aches, persistent diarrhea, or new respiratory symptoms as something to evaluate, not something to wait out. Most will be benign. A small number will be travel-related and benefit from earlier diagnosis. Mention the cruise on your intake form even if you feel that the symptom is unrelated. Travel history changes the differential diagnosis a physician should consider.

How TrufaMED handles travel medicine for Miami cruisers

TrufaMED is the only Joint Commission-accredited urgent care in Florida and the only walk-in clinic in Surfside that combines urgent care, on-site rapid testing, in-house labs, IV therapy, and concierge medicine. For cruise passengers we offer:

• Pre-travel consultation with a board-certified physician. Vaccination review, prescription planning, destination-specific risks, individualized first-aid kit guidance.
• Rapid panel testing for the common post-travel illnesses (flu, COVID, RSV, strep, respiratory pathogen panels) with results before you leave the visit.
• In-clinic IV therapy for severe dehydration after gastrointestinal illness on board, including for patients who do not need hospitalization but feel terrible.
• On-demand house call doctor visits for travelers who land too sick to drive to a clinic, or for hotel guests who are passing through Miami before a cruise and need a pre-travel evaluation in their hotel.
• Concierge medicine memberships with 24/7 physician access for Miami residents who travel frequently and want a relationship with a specific physician they can reach by text or phone from anywhere in the world.

Frequently asked questions

Bottom line

Most cruise travel is safe for most people. The medical issues that arise are usually minor and well-managed by the ship medical center or by waiting it out. The cases that go badly tend to share a common feature: a medical issue that should have been addressed before boarding was carried onto the ship instead. The pre-cruise checklist exists to catch those cases.

If you are sailing from PortMiami in the next few weeks and want a pre-travel consultation, call (305) 537-6396 or message us on WhatsApp at +1 (305) 842-9801. We are open seven days a week and can typically schedule a pre-travel visit within two business days.

Sources cited in this article: CDC Travelers' Health, CDC Hantavirus Situation Summary May 2026, WHO Disease Outbreak News May 2026. Pre-travel medical guidance depends on individual circumstances and current public health conditions.