Answer:
Pathogens:
"Any invading or foreign particle that crosses the line of defense of an organism or mainly its is called as pathogen."
They are infectious disease or disorders that are caused by the infectious or bacterial cells inside any hosts body system. As severity may range from being of acute to a chronic level
Step-by-step explanation:
Common sources of different pathogenic bodies which are causes unhealthy situations in the human body are as follow:
There are various types of bacteria can cause many food borne diseases and can create severe chronic or acute sitaution inside the food track and inisde the digestive system of the body.
Shigella, Campylobacter, and Salmonell etc.
HIV or AIDS can be caused by unprotected sexual or any blood transfusion etc between any two people, in which one has the disorder can causes it inside the other one.
For example:
Saliva, blood, sexual interaction in unprotected way.