Japan vaccines 2026: which ones actually matter

Japan vaccines 2026: which ones actually matter

No vaccine is mandatory to travel to Japan from France or most EU countries. The country has one of the best-performing healthcare systems in the world and a health profile close to Western Europe. Here are the real recommendations, without overstating the risk.

Mandatory vaccine: none (except the yellow fever case)

Japan requires no vaccination on entry for a traveler coming directly from France. The one situation that changes things: arriving from a country where yellow fever circulates (parts of sub-Saharan Africa, South America). In that specific case, a vaccination certificate can be requested at health control.

Recommended vaccines, by relevance

Routine French vaccination schedule

First, check that your basic vaccines (diphtheria, tetanus, polio, measles-mumps-rubella) are up to date. That’s the baseline for any destination, Japan included.

Hepatitis A

This is the most consistently advised vaccine for a Japan trip, even a classic Tokyo-Kyoto-Osaka urban circuit. The virus spreads through contaminated water and food. Izakayas, street markets and street food stalls, all heavily visited by tourists, carry a moderate but real risk.

• 2 injections, 6 to 12 months apart
• Near-full protection after the 1st dose
• Ideally: 1st injection 2 weeks before departure

Typhoid

Recommended for long stays or trips off the classic tourist circuit (extended itinerant travel, rural immersion). For a standard 1 to 3-week stay in Tokyo, Kyoto or Osaka, the benefit stays limited.

• 1 injection, booster every 3 years
• Plan 2 weeks before departure

Hepatitis B

Mostly relevant for frequent or extended stays, or in case of expatriation (medical contact, dental care, tattoo, piercing on site).

• Full schedule over 1 to 6 months depending on the accelerated or standard protocol
• Useful for Working Holiday participants and long expatriations

Japanese encephalitis

The name is misleading, the actual risk is very low in Japan, unlike some other Southeast Asian countries. Japanese health authorities apply effective control measures (mosquito population monitoring, livestock vaccination). This vaccine is only considered for extended rural stays in rice-growing areas during warm season (June to September), typically beyond a month.

• 2 doses, 1 month apart
• High cost, reserved for genuinely at-risk profiles

Tick-borne encephalitis

Only relevant for extended forest hiking in Hokkaido during warm season. For a classic circuit in the south and center of the country, this vaccine has no use.

What isn’t a risk in Japan

• Malaria: zero risk, no preventive treatment needed.
• Dengue: very rare, localized cases, no specific vaccine recommendation in 2026.
• Cholera: no significant risk for a standard traveler.

General food and health precautions

Japan has very high food hygiene standards, well above the Asian average. The usual precautions still apply for any Asia trip:

• Tap water safe to drink in nearly the whole country, including for brushing teeth
• Street food generally safe thanks to strict health controls
• A basic first-aid kit (anti-diarrheal, painkiller, bandages) is recommended more for convenience than necessity, given how many well-stocked pharmacies exist across Japan

When to see a doctor before leaving

Plan a consultation at a travel health clinic or with your doctor 4 to 6 weeks before departure, to allow time to complete multi-dose schedules if needed (hepatitis B, Japanese encephalitis). For a standard 1 to 3-week stay in major cities, hepatitis A plus an up-to-date routine schedule covers the vast majority of cases.

Travel insurance: the real health issue

More than vaccines, the most important health point for Japan remains health coverage. The country has a top-tier hospital system, but rates for a foreign patient without Japanese health insurance can climb fast, especially for hospitalization or medical repatriation.

Other practical info Japan

• Visa : 90-day exemption for French and EU nationals
• Safety : crime, bear encounters in rural areas
• Time difference : +7h / +8h from Paris
• Budget : how much to plan per day
• eSIM : connected on arrival

Page written by Marie L., Southeast Asia and Japan specialist, editor-in-chief of L’Heure du Voyage. 12 years of experience, regular stays in Tokyo since 2015. Updated: July 28, 2026. Verified by 2 experts.