Several years ago, modern medicine unanimously believed that the blood flowing in the human body was clean and free of pathogens.
Based on this view, a series of concepts emerged, such as bacteremia - the presence of bacteria in the blood, and sepsis - the proliferation of pathogens in the blood.
However, as researchers made progress in studying the human microbiome, people began to realize that blood might not be as clean as they previously thought. Even in normal blood, there would be a small number of pathogens, but they remain dormant in the blood without reproducing or producing toxins, naturally not causing any symptoms.
The reason why the blood discharged from Lister's body earlier appeared in such a dark red color was that the moment the Holy Light Purification touched his body, the dormant pathogens in his blood inexplicably exhibited an explosive proliferation and infection...