Can I get a health certificate for my holiday in Wuxi?

You can't. According to official website of Wuxi People's Hospital, the physical examination time is from 7: 30am to10: 30am from Monday to Friday (excluding holidays), and the physical examination needs to bring a copy of the business license of the work unit (stamped with the official seal or a copy of the legal person ID card) and the original ID card. So you can't get a health certificate when you are on vacation in Wuxi.