With flu season in full swing, here’s what travelers need to know before visiting Japan

Recent cases highlight why health awareness is essential when traveling

A recent tragedy has put travel health in the spotlight. A well-known Taiwanese entertainer, Barbie Hsu, best known for starring in the hit TV series Meteor Garden, passed away from influenza while on vacation in Japan, raising concerns about how winter illnesses can impact even the healthiest travelers.

Japan remains one of the world’s safest travel destinations, but like anywhere, it comes with seasonal risks—especially in winter, when flu and norovirus cases spike. Crowded trains, busy tourist attractions, and indoor heating all contribute to the rapid spread of infections.

However, Japan’s strong culture of hygiene, like frequent handwashing, mask-wearing, and the use of antiseptic mouthwash, offers valuable lessons for travelers looking to stay well. Simple habits, smart precautions, and local knowledge can make all the difference.

Wanping Aw, a biomedical scientist and founder of TokudAw, has spent years bridging science with travel. With a Ph.D. in Biomedical Science and deep expertise in Japan’s medical landscape, she offers key insights into how travelers can protect themselves—and how TokudAw provides health-conscious solutions for those exploring Japan.

Why Japan’s winter poses health risks

Japan’s winter season isn’t just about stunning snowscapes and steaming bowls of ramen—like many other places in the world—it’s also peak flu and norovirus season. 

The combination of packed public spaces, overheated indoor environments, and dry winter air creates the perfect storm for viruses to spread. Tourist hotspots, crowded subways, and even the cozy izakayas that make Japan so special can all increase exposure to illness.

While Japan’s healthcare system is world-class, navigating it as a foreign visitor can be challenging. Not all clinics have English-speaking staff, and during flu season, emergency rooms fill up fast. That’s why prevention is so important here. 

Locals have long-standing habits to protect themselves—wearing masks isn’t just a pandemic trend, antiseptic mouthwash is a household staple, and there’s an unspoken rule against coughing or sneezing openly in public. 

For travelers, taking cues from these practices, along with smart planning and proper insurance, can mean the difference between a smooth trip and one spent recovering in a hotel room.

Simple preventative measures for travelers

Staying healthy on a trip starts before departure. Travel insurance is a must—without it, accessing private hospitals can be costly and complicated. A solid policy paves the way for faster care and coverage for unexpected medical needs.

Flu shots provide an extra layer of protection, especially in winter when influenza is rampant. Many clinics offer vaccinations before departure, reducing the risk of serious illness while abroad.

Once in Japan, good hygiene is non-negotiable (and surprisingly easy). Public spaces have hand-washing stations—use them often. Locals also gargle with antiseptic mouthwash like Kowa, a habit known to reduce throat infections.

Hydration also plays a role in immunity. Pocari Sweat, a popular Japanese electrolyte drink, helps prevent dehydration, while probiotic drinks like Meiji R-1 support gut health, which is closely linked to overall immunity.

Finally, private transport minimizes exposure. Taxis, subways, and bullet trains are shared spaces, making them hotspots for flu and norovirus transmission. A private charter car keeps travel contained to familiar faces, reducing the chances of picking up unwanted germs.

What TokudAw does to maintain clean travel

TokudAw prioritizes hygiene to give travelers peace of mind. Every vehicle is sanitized daily using Dyson vacuums to remove dust, allergens, and bacteria from seats and floors. High-touch surfaces like seatbelts and door handles are disinfected with SWIFF antimicrobial spray, a hospital-grade formula proven to kill viruses and bacteria without harsh chemicals.

Driver health is also taken seriously. Before and after every shift, drivers undergo temperature and health checks. If they show any signs of illness, they are not permitted to work.

Beyond cleanliness, TokudAw offers on-the-ground support. Drivers are familiar with local clinics, hospitals, and pharmacies, ensuring immediate help if needed. The entire TokudAw team stays connected, coordinating behind the scenes to assist travelers with medical concerns—be it finding the right over-the-counter medication or securing a clinic appointment in an unfamiliar area.

Real stories of travelers who needed help—and got it, fast

Medical emergencies can happen anywhere, but quick thinking and local know-how can save the day.

One traveler, a wheelchair user, fell outside FamilyMart at night. The TokudAw team immediately checked in at the hotel, made sure his condition was stable, and arranged emergency transport for a hospital visit the next day. With their guidance, he worked through the insurance process smoothly and resumed his trip.

Another guest developed a swollen eye and wanted to visit a hospital ER. Knowing that emergency rooms were crowded with flu patients, TokudAw found a nearby eye specialist, made an appointment, and secured quick treatment—avoiding unnecessary exposure to illness.

In another instance, a traveler developed flu symptoms mid-trip. Instead of struggling through language barriers, TokudAw’s founder, Wanping Aw, a biomedical scientist, personally assisted them at a pharmacy, ensuring they received the right over-the-counter medication for their symptoms.

Final takeaways for staying healthy in Japan

Good travel habits can make all the difference. A flu shot before departure, regular handwashing, and simple local tricks—like antiseptic mouthwash—can help keep illness at bay.

Public transport and crowded tourist hotspots increase exposure, especially during flu season. A private charter cuts down risk and keeps travel stress-free.

But beyond precautions, having local backup matters. TokudAw’s team knows where to find medical help fast, how to locate and communicate with pharmacies, and when to avoid an ER visit. Japan is a safe, incredible destination—just pack a little awareness along with your passport.