The pathogens are more virulent now than in the past because of the development of cross tolerance or cross resistance.
A pathogen makes its host sick. Because they cause diseases, pathogens are also known as infectious agents. Pathogens emphasize survival and reproduction, just like any other organism does.
The immune system of the human body protects the body from infections. Some viruses are easily defeated by the body, but others have the potential to be lethal.
Different diseases, some more serious than others, can be brought on by pathogens. A pathogen can thrive and spread in the nutrient-rich environment that human bodies can offer.
Pathogen-induced infections can range in severity. While some illnesses may be minor, others can be fatal, For instance, compared to the deadly Ebola virus disease, the common cold is a moderate viral infection.
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