What You Don’t Know Can Ground You
The dramatic stuff grabs headlines. Ebola outbreaks in Africa. A hantavirus case traced to a cruise ship. These stories circulate, spike anxiety, and then fade — leaving most travelers with a vague sense that serious illness is something that happens to other people, in other places, under unusual circumstances. That sense of distance is exactly what makes travel-related illness so predictable.
Measles is a useful corrective. The CDC has stated plainly that cases are rising in many countries around the world and that all international travelers should be fully vaccinated against it with the measles-mumps-rubella (MMR) vaccine. Measles isn’t exotic. It doesn’t require a jungle itinerary or adventurous eating. It circulates in airports, in crowds, in ordinary destinations that millions of people visit every year without giving their MMR status a second thought.
The health risk you haven’t considered is the one most likely to ruin a trip.
Start With the CDC, Then Keep Going
The CDC’s dedicated Travelers’ Health website is the right first stop. Enter your destination country and you’ll get a structured breakdown: recommended vaccines, suggested medications, health and safety considerations, and medical packing checklists tailored to different traveler profiles. The World Health Organization’s international travel and health section is a credible second source if you want to cross-reference anything. Both are free, accessible, and updated regularly.
But the internet has a ceiling.
Corey McVey, director of nursing at Passport Health in Chicago and Wisconsin, puts it directly: a travel consultation will calibrate recommendations to your personal health history and the specific activities you’re planning. The CDC website gives you population-level guidance. A consultation gives you something more precise. “The needs of a backpacker traveling through Thailand are different than a business traveler who will only be in Bangkok a few days,” McVey notes. Same country, different risk profile, different preparation.
The more layered problem is that primary care physicians — while essential — aren’t always current on active outbreaks or emerging regional risks. They may not carry the vaccines a traveler needs, and they may not flag things a travel clinic would catch. Consulting your regular doctor is the right move, and many will refer you onward to a travel clinic for exactly this reason. That referral matters. Take it.
Only 10% of Travelers Who Should Get a Consultation Actually Do
That number, cited by McVey, is worth sitting with. Nine out of ten travelers who should seek pre-trip health advice don’t — and several overlapping reasons explain the gap.
The most common one is simple confidence. People believe they won’t get sick. McVey draws the comparison plainly: “You should get a consultation for the same reason you wear a seat belt. You don’t know about others. You don’t know about the people cooking your food.” The logic isn’t about pessimism. It’s about variables you can’t control once you’ve left home.
A second reason is misunderstanding how vaccines function. McVey encounters patients who believe the shot itself causes illness — that vaccines introduce a disease in order to produce immunity, and that some period of sickness is inevitable. This misreads the science. Very few people experience anything beyond mild, temporary side effects from standard travel vaccines, and most experience nothing at all. Delaying vaccination over this concern leaves travelers exposed to the actual diseases those vaccines prevent.
There’s also the question of timing, which most travelers get wrong. Vaccines aren’t a day-before-departure task. Some require multiple doses spaced weeks apart. Others need time to build effective immunity before exposure. If you’re flying somewhere in three weeks and haven’t started, you may already be behind on certain vaccines. The calculation changes depending on destination and itinerary, which is another reason a consultation — booked early — is worth the effort.
The Vaccines You Already Have May Not Be Enough
Childhood vaccinations don’t necessarily last a lifetime.
Tetanus and polio are standard examples. Many adults were vaccinated against both as children and haven’t thought about them since. Before international travel, a doctor may recommend booster shots — particularly for destinations where the risk of exposure is elevated. The assumption that a childhood vaccine confers permanent protection is one worth checking against your actual records, not your memory of what you might have received.
Seasonal vaccines complicate the picture further. Covid and influenza vaccines don’t cover all circulating strains, and their protective effect wanes. That said, you’re statistically more likely to pick up either illness on a long-haul flight — confined air, recycled circulation, proximity to symptomatic strangers — than at your destination. Updated seasonal vaccines reduce that risk. They won’t eliminate it, but they reduce it, which is the realistic goal of most pre-travel health preparation.
Some risks are genuinely regional. Yellow fever, for example, is primarily a concern in parts of sub-Saharan Africa and tropical South America. Rabies vaccination is typically relevant to specific traveler profiles — people spending extended time in rural areas, those involved in animal contact, or anyone planning activities where exposure is plausible. These aren’t universal requirements. They’re targeted interventions, and the targeting matters.
What a Travel Health Consultation Actually Involves
A travel health clinic appointment runs through your itinerary, your health history, and the specific conditions you’re likely to encounter — not just the country you’re visiting, but how you’ll be traveling through it, how long you’ll stay, and what you’ll be doing. That context shapes the recommendations.
Passport Health operates clinics across the United States, and McVey’s Chicago and Wisconsin locations are among the network. Travel health consultations are available at clinics like these as well as through many hospital systems and university health centers. Costs vary, and not all insurance plans cover travel vaccinations, so it’s worth checking coverage before you go — and worth going regardless if you’re heading somewhere with meaningful health risk.
The consultation also covers medications. Malaria prophylaxis, traveler’s diarrhea treatments, altitude sickness medication — these aren’t vaccines, but they’re part of the same risk-management conversation. A travel clinic handles all of it in one appointment.
Before You Book the Tickets, Book the Appointment
Most travel planning runs in a predictable sequence: flights, accommodation, itinerary, packing list. Health preparation sits somewhere near the bottom of that list, if it appears at all. The problem is that some vaccines require weeks of lead time — which means the consultation needs to happen early in the planning process, not as an afterthought the week before departure.
A yellow fever vaccine, for instance, is required for entry into certain countries and recommended for others. Some antimalarial regimens need to begin days or weeks before arrival. An MMR booster requires only a single dose but should be confirmed and administered well before departure. Each of these has a lead-time built in, and that timeline doesn’t flex to match your departure date.
The CDC Travelers’ Health website is free to use and takes minutes to search. A travel consultation at Passport Health or a comparable clinic typically costs between $50 and several hundred dollars depending on the vaccines administered — a range that looks different when measured against a week of missed travel, or worse, a serious illness managed far from home.
