Consult your doctor for health advice or a check up before you travelling to China, especially for those travelers with history of coronary or pulmonary problems.
No special vaccination is required, but those who have traveled from an infected area before coming to China should have vaccination records available for a health declaration from upon arrival;
Bring a copy of your medical records, including your doctor’s name, telephone and other important contact details on it;
Carry necessary medicines in adequate supply; placing them in original containers to declare that they are illegal medicines; some useful medicines for colds, diarrhea or constipation are also suggested to include in your packing list.
Purchase a health insurance or just extend your travel insurance to the health issues;
It is true that for most cities in China, medical facilities are still lagging behind. But medical rescue efforts for foreign tourists are always in top priority.