China Coronavirus Vaccine Trial Shows Promise

Chinese researchers have confirmed that their vaccine is both effective and safe, as shown in the phase one trial results released by the Chinese Academy of Medical Science. The trial involved nearly 200 adults who gained immunity without severe side effects. China is advancing with four vaccines nearing the end of their trials and has already started vaccinating some essential workers.

What has China done with the vaccines that are near the end of their trials?

Who is the presenter mentioned at the end of the text?