Faced with the choice between revealing her identity and choosing self-preservation while holding onto her disguise, Song Ci chose the former. It wasn't that she wanted to be a saint saving the world, but she hoped to leave something behind before she departed, as if accumulating merit for herself.
As for whether it can succeed, it really depends on how much Lin Qing and these doctors can research, after all, experiments are needed, and it's still uncertain if anyone would be willing to be the test subject.
Of course, the reason she dared to talk about the cowpox was also because the person was Lin Qing, who often took the fall for her. If it were someone else, she wouldn't dare to expose it.
Because she believed that Lin Qing would not betray her, and Lin Qing was a genuinely kind-hearted doctor. If Lin Qing truly made accomplishments based on Song Ci's hints, it would be a great blessing for humanity.
