On the issue of handling health certificate. It is better to be from Rongchang, Chongqing.

Rongchang's health certificate is handled in Rongchang County Center for Disease Control and Prevention (CDC). On Haitang Avenue, you can't find a taxi for 3 yuan. Just take photos and pay the medical examination fee. Those who pass the medical examination can issue a certificate. The cost is about 100. The food industry and all supermarkets need this certificate.