There are many types of germs, or pathogens, that can enter the human body. These include viruses, fungi, bacteria, and protozoa. Once inside the body, the primary goal of a germ is to survive and reproduce.
When drug resistance occurs, the drug -- or combination of drugs -- loses its ability to block the germ from reproducing. Over time, the treatment can stop working completely. It is important to prevent germs from reproducing during treatment to prevent drug resistance from occurring.
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