On the one hand, abuse of antibiotics
It will cause bacterial resistance (adaptability to drugs), that is, the same pathogen may not be able to cure the disease, and it must be used after repeated use of an antibiotic until it is infected again.
Stronger antibiotics. In this way, it is possible for bacteria to evolve into so-called superbacteria in the process of adapting to antibiotics many times. The terrible thing about this pathogen is not its lethality to people, but its harm to ordinary fungicides.
Things-antibiotic resistance, for this pathogen, people have almost no medicine available.