Can hepatitis B surface antigen be positive for health certificate?

I can't. Official website, the First People's Hospital of Chengdu, said that hepatitis B virus can be transmitted through blood and body fluids, and patients with positive HBsAg are contagious. Therefore, the application procedure for health certificate requires the applicant to carry out infectious disease detection, and HBsAg positive is regarded as not meeting the application conditions for health certificate.