Pathogen-Host Interaction

Pathogen-host interaction refers to the biological relationship between a harmful microorganism (pathogen) and a living organism (host). When a pathogen enters the body, it may invade tissues, evade the immune system, and multiply, causing illness. The host's immune system detects and responds to fight off the pathogen. This ongoing battle involves complex processes where the pathogen tries to survive and spread, while the host body activates defenses. Understanding these interactions helps scientists develop medicines and vaccines to prevent or treat infections effectively.