Health
Reference only, not medical advice. Tap water is generally not drinkable; use sealed/treated water and careful food hygiene. Prevent mosquito/tick bites, especially in warm southern/rural areas. Plan gradual ascent for Tibet/Qinghai and other high-altitude routes. Summer heat, winter cold, air pollution, animal bites and freshwater exposure can matter by itinerary.
Vaccinations
Consult a doctor or travel clinic at least 4 weeks before travel. Be current on routine vaccines, including MMR, polio, flu, varicella, Tdap, shingles as appropriate, plus COVID-19. CDC commonly recommends hepatitis A, hepatitis B and typhoid; consider Japanese encephalitis, rabies or tick-borne encephalitis based on rural, outdoor, long-stay or animal-exposure plans. Yellow-fever vaccine is not recommended for China itself, but a certificate is required if arriving from a yellow-fever-risk country, including airport transits over 12 hours; Hong Kong/Macao-only itineraries are exempt.
eSIM / connectivity
Mainland connectivity is strong in cities and transport corridors. China Mobile, China Unicom and China Telecom are the main mobile carriers. Phone eSIM service has expanded but remains more regulated than in many destinations, with real-name registration and device/carrier limits; many visitors still use international roaming, travel eSIMs that roam on Chinese networks, or passport-registered physical tourist SIMs at airports/carrier shops. Check compatibility before relying on eSIM-only phones.
Health/vaccine info is reference only, not medical advice — consult a doctor or travel clinic; defer to CDC/WHO and official sources (as of 2026-06-20).