Once a human is infected with a virus, bacterium, fungus, or parasite they interfere with the human’s normal body function
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<u>Explanation</u>:
The infection due to the pathogen are not always end up as a disease. Infection occurs when any pathogen comes inside the human body it can be virus, bacteria or can be fungus, and starts multiplying by getting suitable environment as well as the host. The microbes sometimes challenges the immune system and lowers the resistance power the body. So, as viruses does by killing the fighter cells and also by disrupting the general cell functions.
