Visit your health professional at least 4 to 6 weeks before your trip to check whether you need any vaccinations or other preventive measures.

Check the latest country-specific information and advice from the National Travel Health Network and Centre (NaTHNaC) on the TravelHealthPro website or from NHS (Scotland) on the fitfortravel website. Useful information and advice about healthcare abroad is also available on the NHS Choices website.

If you’re on prescription medication, make sure you bring enough with you or have access to a supply in China. Certain medicines may not be available and you may be prohibited from bringing others into the country. For more information and advice, check with your GP and the Embassy of China before travelling.

Healthcare is not free in China and can be very expensive. Make sure you have comprehensive travel and medical insurance covering healthcare and medical evacuation/repatriation for the duration of your stay. For more information, see Medical treatment in China.

If you need emergency medical assistance during your trip, dial 120 and ask for an ambulance. You should contact your insurance/medical assistance company promptly if you need treatment.

The high levels of air pollution in major urban and industrialised areas in China may aggravate bronchial, sinus or asthma conditions. Children, the elderly and those with pre-existing medical conditions may be especially affected. You can check the pollution index levels for many cities on the website.

Tap water in China is generally not safe to drink. You should drink only bottled water.

The extreme altitude (over 3,000m) of some areas, including Tibet, parts of Xinjiang-Uighur Autonomous Region and Qinghai Province, may cause altitude sickness.

The Chinese authorities react quickly to any outbreaks of any infectious disease, including enforcing quarantine for those showing symptoms.

On 23 May the US Consulate in Guangzhou issued a health alert following a recent report of abnormal symptoms by a US government employee based in Guangzhou. We are seeking further information but at this stage are not aware of any specific risks to British nationals. If you have any concerns about symptoms or medical problems, you should always seek medical advice.

Human infections of avian influenza are being reported in China, particularly among those individuals who have been in close contact with infected birds. Before travelling, you should read more information and follow the prevention advice on Public Health England and NaTHNaC’s websites.

Dengue fever is present in some parts of China mainly during the rainy season. There has been a large increase in cases of dengue fever in Guangdong province. You should take appropriate precautions to avoid being bitten by mosquitoes.