For Clinicians | World Cup 2026 Pre-Travel Counseling

For Clinicians | World Cup 2026 Pre-Travel Counseling

Three Host Countries, Three Measles Outbreaks

By Dr. Jamie Wilkey, PharmD — Director of Clinical Strategy, Jase
Edited and approved by Kristen Carpenter, PA-C — Clinical Advisory Board Member

By the time a patient is in your exam room asking about MMR before a Mexico City group stage match, or whether the dengue notice applies to their cruise out of Galveston, they’ve already done the easy googling the answer online. The basic question doesn’t require a visit with you.

What lands on your schedule now is the second-layer question. The one they couldn’t find a good answer to online.

Most of us were having a different conversation with travelers five years ago. Pre-travel counseling mostly isn’t reaching a provider at all. Patients are searching, asking AI, scrolling forums, and going. The ones who do bring it to you are bringing the residual question, the one the internet didn’t resolve cleanly. Often it’s a very specific recommendation they want: do I actually need this booster, what should be in the kit, etc. This article is meant to be the clinician-side reference for the summer 2026 version of that conversation.

What’s actually on the CDC board for summer 2026?

The World Cup is the biggest thing happening this summer around the world. Measles is active in all three World Cup host countries. The US has confirmed 1,952 cases as of late May, already approaching the full-year 2025 total of 2,288 with the entire summer ahead.¹ Canada lost its measles elimination status in November 2025 after twelve months of sustained transmission and has reported 907 new cases since the start of 2026.² Mexico’s Jalisco state, home of World Cup host city Guadalajara, has logged 5,282 confirmed cases through mid-April in the country’s worst outbreak in decades.³ Guadalajara isn’t a measles statistic, it’s a place your patients are booking flights to.

The CDC has issued a Level 1 Global Dengue notice covering more than 100 countries, which is an unusually broad advisory.⁴ Locally acquired dengue is also showing up in southern US cities, with multiple confirmed cases in Los Angeles County over the past two transmission seasons.⁵

A novel hantavirus cluster on the MV Hondius expedition ship in the South Atlantic killed three passengers in May, identified as Andes virus.⁶ The WHO assessed the global risk as low. More on the cruise question below.

And the World Cup itself is the largest funnel event in the history of international travel: 48 teams, 16 host cities across the US, Mexico, and Canada, and FIFA’s projected engagement figure of nearly 6 billion people.⁷ You’re thinking: most of them will be watching from a couch. True. But millions will not.

Quick reference: summer 2026 by destination

A pull-up-in-the-room reference for the most common itineraries your patients are flying.

World Cup host countries (US, Canada, Mexico). Active measles transmission in all three. Verify MMR status, especially for adults born after 1957 with uncertain documentation. Patients vaccinated between 1963 and 1968 may have received the inactivated vaccine and should be revaccinated. Check the CDC measles notice before departure.

Caribbean, Latin America, and the southern US. Dengue is elevated in 2026 across Cuba, Brazil, Colombia, Mexico, and locally in southern California and along the Gulf. Counsel EPA-registered repellent (DEET or picaridin), permethrin on clothing, and air-conditioned or screened sleeping. Tell patients to seek care if a fever spikes within two weeks of return.

Cruise ships. The cruise ship hantavirus story is everywhere this month, and it deserves a one-line answer: your patient’s Caribbean cruise out of Miami is statistically not where this is happening. The MV Hondius cluster was on an Antarctic expedition vessel, geographically remote, and WHO has assessed the global risk as low. The actual cruise ship risk is much more mundane….and much more likely. Norovirus is the leading cause of cruise ship outbreaks, and a separate norovirus event affected hundreds of passengers on a Caribbean cruise this same month. The other reliable ways to lose a cruise day: respiratory virus, traveler’s diarrhea, motion sickness. Counsel aggressive handwashing (alcohol gel works against respiratory viruses but soap and water is what handles norovirus), pack a small kit, and report symptoms early so the cruise medical staff can manage them in the cabin instead of letting them derail the trip.

The 20-minute checklist

Four steps, and it fits inside a short visit.

1. MMR verification. For adults born after 1957, confirm two documented doses or evidence of immunity. Adults born before 1957 are generally considered immune. Patients vaccinated between 1963 and 1968 may have received the inactivated vaccine and should be revaccinated. (Your MA can pull these records in five minutes. It doesn’t need to be your time.)
2. CDC notices for the specific destination. Send patients to the CDC Travelers’ Health page for their destination. The notices update frequently. The page is at wwwnc.cdc.gov/travel/notices.
3. Medical prep, not just medications. The kit conversation is broader than prescriptions. The prescription backbone is one piece. The rest is the simple stuff that keeps a small problem from becoming the thing they remember about the trip. A reasonable kit, paperback-sized, fits in a carry-on:

• Gauze and adhesive bandages in two sizes
• Antibiotic ointment (Neosporin or equivalent)
• Blister care: moleskin and hydrocolloid patches
• Oral rehydration salts or electrolyte packets
• A digital thermometer
• OTC motion sickness medication
• A short course of clinically appropriate prescription medications for predictable conditions like UTI, traveler’s diarrhea, common respiratory infections, and yeast infections. This is what Jase handles, prescribed and packaged ahead of the trip.

The kit exists so your patient doesn’t end up standing in a foreign pharmacy at 9pm with a phone translator trying to figure out which Spanish word means antiseptic.

4. What’s available at a foreign pharmacy, and what isn’t. Pharmacy availability varies more than patients expect. Some countries dispense antibiotics over the counter. Others require a domestic prescription that a US script won’t satisfy. Brand names you trust at home may carry different active ingredients abroad, or different doses. View our recent article on Prescription Medication Abroad.

The OTC trap when you’re abroad

This sounds boring and obvious, but is the highest-leverage thing a clinician can teach a traveling patient.

Over-the-counter in another country does not mean equivalent to over-the-counter at home. Acetaminophen is sold as paracetamol in most of the world; dosing is usually the same, but the name swap leads to accidental double-dosing when patients also take a combination cold medication that contains the same active ingredient. Ibuprofen is available widely, but the dose per tablet varies. Antihistamines sold under familiar US brand names abroad sometimes contain different active ingredients, including older sedating compounds that can interact with travel sedatives or alcohol. Counterfeit medication is a real concern in some regions and includes products with the wrong dose, the wrong drug, or no active ingredient at all.

The rule we counsel: bring what you already use, in the dose you already use. Foreign pharmacies are useful for things you didn’t anticipate, not for things you could have packed.

When the call comes from abroad

Your patient is on day four of a Caribbean cruise with a UTI that started in Cozumel. Or she’s in Florence with a sinus infection she’s been ignoring since Rome. Or he’s on a two-month sabbatical and the antifungal he meant to refill before he left got missed. The portal message comes in. The voicemail comes in. The text from the family member who has your cell. The expectation is that you’ll fix it from your desk.

You can’t.

As Kristen put it to me when we were drafting this together: “I can’t send a script to Europe.”

That’s the first wall. There is no mechanism for routing US prescriptions to foreign pharmacies. And even within the US, looking up an out-of-state pharmacy in eScript takes a while. It’s doable; just a pain that takes up precious time between patients.

The second wall is bigger: anticipating everything that could come up across a two-week trip. The sinus infection that builds on the flight. The GI bug that hits day three. The skin issue from the cruise pool. The allergic reaction to something at a night market. Half a dozen potential prescriptions across as many therapeutic categories, for conditions that may or may not actually present. That work is complex, isn’t part of your fast clinical workflow, and takes hours, not minutes, per patient. Unless you’ve got a really standardized protocol covering all the categories, it’s just easier to refer. It can be done. It probably just doesn’t feel worth your time.

The known versus the unknown is the real divide here. Writing one or two prophylactic scripts for a patient with a recurring issue you already know about (the UTI history, the predictable cold sore) is something most providers can do confidently. The indication is clear, the duration is short, the patient self-identifies. Anticipating everything that might come up on a trip is hard. It should be hard, because it’s very complex.

Appropriate medical preparation

This is the category Jase is building, and pre-travel readiness is one of its clearest applications. Appropriate medical preparation means a short list of well-defined, common, predictable conditions handled clinically before the patient is sick, by people who know what they’re doing, so the patient has what they need before they need it.

It is in no way a replacement for primary care. Complex diagnoses, chronic conditions, ongoing provider relationships belong in your exam room. We work in the contingency space: the UTI on day four of the trip, the traveler’s diarrhea on day six, the strep that announces itself the night before a flight home. The conditions where the clinical decision is predictable and the only failing variable is access.

This is a call to prepare appropriately, not exhaustively.

Who’s doing this work

Jase is a family company of medical doctors, physician assistants, and pharmacists, five years in, with the credentials breadth (board-certified family medicine, disaster medicine, multi-state pharmacy) to make the clinical work defensible.

Charting the grey area in public

Pre-travel counseling is a capacity problem in most primary care practices. The visit is short, the destinations are varied, the CDC board changes faster than most providers can track. If your patients are asking and you don’t have the time to walk them through it, you can refer them to us at Jase.com. We handle the prescription work, the kit, and the patient education ahead of the trip, and we send them back to you with documentation.

We’re going to keep publishing the framework as we use it. The clinical decision trees, the destination-specific notes, the cases where the call is harder than it looks. Public knowledge gets better when clinicians chart the grey area in public instead of letting the internet do it.

The bottom line

Summer travel is supposed to be exciting. It is not supposed to be anxious.

A verified MMR, a short conversation about the destination’s CDC notice, and a small kit on the shelf will handle the vast majority of what makes a trip go sideways. Most of it is fixable in advance, and the fixing happens in your office or ours, not in a foreign emergency room at 11pm.

If your patient is heading to a host city this summer, send them out the door prepared. If you’d rather refer them, send them to us. Either way, the goal is the same: a trip they remember for the right reasons.

Sources

1. CDC, “Measles Cases and Outbreaks,” data as of May 21, 2026: 1,952 confirmed cases in the US year to date. cdc.gov/measles/data-research
2. Gavi VaccinesWork and PAHO: Canada lost measles elimination status November 10, 2025, after sustained transmission. CIDRAP reporting on 907 cases since January 2026.
3. ABC News, US News, Mexico News Daily reporting on the Jalisco outbreak: 5,282 confirmed cases through April 10, 2026, in Mexico’s worst outbreak in decades.
4. CDC Travel Health Notices, Global Dengue Level 1: wwwnc.cdc.gov/travel/notices/level1/dengue-global
5. Los Angeles County Department of Public Health; CDC Emerging Infectious Diseases, May 2026, on autochthonous dengue transmission in southern California.
6. WHO Disease Outbreak News, May 2026; CDC HAN 00528: MV Hondius hantavirus cluster, Andes virus, 7 cases including 3 deaths.
7. FIFA and TheWorldData on the 2026 World Cup: 48 teams, 16 host cities across the US, Mexico, and Canada; FIFA’s projected engagement figure of approximately 6 billion.