East Asia includes some of the safest and most developed travel destinations in the world alongside regions with significant health considerations. Japan and South Korea have world-class healthcare and very low infectious disease risk, requiring minimal pre-travel health preparation beyond routine vaccinations. China and Mongolia present more varied challenges depending on your itinerary — rural China still carries risks for Japanese Encephalitis, rabies, and foodborne illness, while Mongolia's remote steppe and limited medical infrastructure require careful planning.
Most travellers to East Asia should consider the following vaccines:
Malaria risk in East Asia is very low. Japan, South Korea, and Mongolia are considered malaria-free for practical purposes. China has made extraordinary progress in malaria elimination and was certified malaria-free by the WHO in 2021 after reporting zero indigenous cases for four consecutive years. Antimalarial prophylaxis is not required for standard travel to any East Asian destination. Travellers visiting remote border areas of Yunnan province (bordering Myanmar) should consult a travel health professional for the latest risk assessment.
Click any destination for detailed vaccination requirements
Japan requires minimal vaccination beyond your routine schedule. Ensure your measles, diphtheria, tetanus, and polio vaccinations are current. Hepatitis A and B are recommended as a general precaution for all international travel. Japanese Encephalitis vaccine is only recommended if you plan to spend an extended period in rural areas during the transmission season (June–September). Japan has excellent healthcare and very low infectious disease risk.
Hepatitis A and Hepatitis B vaccinations are recommended for all travellers to China. Typhoid is recommended if you are visiting smaller cities or rural areas. Japanese Encephalitis vaccine is recommended for stays over one month or travel to rural areas, particularly in southern and eastern provinces during the transmission season. Rabies pre-exposure vaccination is recommended for extended stays in rural areas. Ensure routine vaccinations are current, including measles.
In Japan, tap water is safe to drink everywhere. In South Korea, tap water is treated and technically safe, though many locals prefer bottled or filtered water. In China, tap water should not be consumed without boiling or filtering — this applies even in major cities. In Mongolia, always use bottled or treated water, particularly outside Ulaanbaatar.
Mongolia requires more preparation than most East Asian destinations. Hepatitis A, Hepatitis B, Typhoid, and Rabies vaccinations are recommended. If you will be in rural ger camps or on the steppe, carry a comprehensive first aid kit, water purification tablets, and a supply of any prescription medications. Medical facilities outside Ulaanbaatar are extremely limited. Travel insurance with helicopter evacuation cover is essential for overland travel.
Japanese Encephalitis is present in rural parts of China, and to a lesser extent in Japan, South Korea, and Mongolia. The risk is highest in agricultural areas with rice paddies and pig farming during the transmission season (typically May–October). For most short-stay urban travellers, the risk is negligible. The vaccine is recommended for stays over one month in rural or agricultural areas, or for travellers with significant outdoor exposure.
Costs vary depending on the destination. For Japan and South Korea, you may only need routine vaccine boosters ($0–$100). For China, expect $200–$500 for Hepatitis A, Hepatitis B, Typhoid, and potentially Japanese Encephalitis. For Mongolia, budget $400–$700 including Rabies vaccination (3 doses at $100–$120 each). GP consultation fees apply on top. Most travel vaccines are not covered by Medicare.
Air quality in major Chinese cities varies significantly by season and location. Beijing, Tianjin, and cities in Hebei province experience the worst pollution, typically from October–March. Shanghai and southern cities generally have better air quality. The Air Quality Index (AQI) is freely available via apps and websites. Travellers with asthma or respiratory conditions should carry their medication, consider an N95 mask for high-pollution days, and monitor forecasts. Indoor air quality in modern hotels is usually acceptable.
Rules vary significantly by country. Japan has strict regulations — some common medications containing pseudoephedrine, codeine, or stimulants (including some ADHD medications) are prohibited or require advance import permission through the Yakkan Shoumei process. South Korea and China also have restrictions on narcotics and psychotropic substances. Always carry medications in original packaging with an English-language letter from your prescribing doctor. Check each country's specific rules before departure.
Last updated: April 2026