Sophie is infected with Pseudomonas, which is actually a common pathogen. It likes to live in a humid environment, usually distributed in soil, water, air and plants, and spread through wounds, just like Sophie was cut by plants in the forest and infected through wounds.

The initial infection state of Pseudomonas is fever and exhaustion. Appropriate antibiotics should be given in the way of treatment, so that the bacteria are tenacious and will produce drug resistance, and the condition may be temporarily controlled, but it will recur. Therefore, the antibiotics used by bacteria vary from person to person and should be treated individually.

The most terrible thing about Pseudomonas is that other diseases, such as blood infection, can cause bacteremia. The best way is to advise the patient to isolate, because the patient is too weak to contact with the outside world and will be infected to death. In addition, if bacteremia is not well controlled, it will become septicemia with a mortality rate as high as 80%. Sophie's condition is worried that she will die of septicemia, so the doctor suggested that hospitalization isolation would reduce the risk. In addition, if Pseudomonas continues to infect other parts, the hope of cure lies in changing medicine constantly and finding effective methods for patients.

Finally, if Pseudomonas is out of control and mutates into masa, the word masa stands for bacteria that are resistant to too many antibiotics and have no antidote at all. The patients here have only a dead end, and there is almost no chance of survival, which is exactly the sudden change of Sophie's disease that the dean is currently worried about.