The Expert Guide to Southeast Asia Travel Health

Updated February 2026

From the bustling night markets of Bangkok to the serene landscapes of Vietnam and Bali, Southeast Asia is a destination defined by exploration and incredible food. Whether you are traveling on a budget, visiting family and friends, or enjoying luxury villas, the region’s diverse environments require a nuanced approach to health. My goal is to handle the clinical logistics so you can explore with total confidence and stay safely immersed in the experience.

 

As a Licensed Doctor of Pharmacy (PharmD) and faculty member at the University of Washington, I specialize in providing practical, evidence-based health strategies and prescriptions for travelers exploring the unique landscapes of Southeast Asia.

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Delicious Thai steamed fish dish garnished with fresh herbs and spices.
Majestic Tian Tan Buddha statue in Hong Kong's New Territories under a clear blue sky.

The Street Food Reality: Beyond “Boil it, Cook it, Peel it”

In Southeast Asia, food is the main event for most travelers. While traditional advice says to avoid anything you can’t peel or boil, I know that for many, that isn’t a realistic or desirable way to experience countries like Thailand or Vietnam.

 

  • The “Just in Case” Kit: Instead of strictly limiting your culinary exploration, we focus on preparation. I provide recommendations to prevent travelers diarrhea, such as the typhoid vaccine, and what to include in a  a “just in case” kit that includes both over-the-counter and prescription tools for managing traveler’s diarrhea. Having these on hand means that even if a meal doesn’t sit right, it won’t derail your entire trip.

Mosquito Management: More Than Just the Illnesses

Mosquitoes are one of the most common concerns for travelers in this region—and for many, it’s not just about the diseases they carry, but the bites themselves. I often hear from travelers that “mosquitoes just love me,” and in Southeast Asia’s tropical climate, that can quickly become a problem.

 

  • A Targeted Strategy: During our consultation, we’ll look at your specific route to determine your actual risk for mosquito-borne illnesses. We’ll decide if prescription chemoprophylaxis (preventative medication) is necessary for your path or if high-quality repellent and avoidance measures are your best defense. We’ll focus on finding the most effective, evidence-based repellents to keep you comfortable and bite-free from sunup to sundown.

The “Unseen” Risks: Rabies & Japanese Encephalitis

While they don’t always make the headlines, certain regional risks deserve a proactive conversation:

 

  • Wildlife Awareness: In many parts of Southeast Asia, encounters with monkeys or stray dogs are common. We’ll discuss keeping your distance from local animals and, more importantly, what to do if an encounter occurs.

  • Japanese Encephalitis (JE): While the risk is low for most short-term travelers, it is a consideration for those spending extended time in specific rural areas. We’ll look at your timeline and geography to see if this is a necessary addition to your prep.

Streamlined Support for Washington Travelers

I provide clinical support that fits the fast-paced nature of modern travel:

 

  • Itinerary-Based Risk Assessment: We look at your whole map—not just the country—to tailor your health plan.

  • Seamless Pharmacy Logistics: I send your travel prescriptions directly to your preferred Washington pharmacy—Costco, Katterman’s, or your local neighborhood spot—immediately following our call.

Lisa Garza, PharmD

Lisa Garza, PharmD, is a licensed Doctor of Pharmacy, a faculty member at the University of Washington School of Pharmacy, and an avid traveler who understands that the best adventures shouldn’t be sidelined by health scares. As the founder of Odyssey Travel Health, she helps Washingtonians discern exactly which vaccines and antimalarials are necessary for their specific route. Whether she’s optimizing altitude performance for the Inca Trail or preparing travelers to proactively manage gut health, she provides the evidence-based clarity needed to explore the world with total confidence.

MEDICAL DISCLAIMER

Although I am a healthcare provider, I am not YOUR healthcare provider. All content on this website is for informational and educational purposes only, does not constitute medical advice and does not establish any kind of patient-client relationship by your use of this website. Always seek personalized advice from a qualified healthcare provider before making any health or medical decisions.