as I understand this manga, it seems to follow the past history of real world diseases. So I'm expecting big bad diseases back then when medical treatment and hygiene is still poor. White Death, Black Death, Smallpox, Yellow Fever, Cholera, Malaria...
I really hope the translation team is getting more recognition to speed up the scanlations. It's very rare to find such in-depth medical, real world-related diseases manga. Without any ecchi, harem, fanservices, and focuses much more on description of medicine and diseases.
This is definitely a manga that makes you fix your glasses with the tip of your little finger