👉 Infection occurs when a pathogen, such as bacteria, viruses, fungi, or parasites, enters and takes control of a host's body, disrupting normal cellular functions and potentially leading to disease. This process begins when the pathogen breaches the body's defenses, often through breaks in the skin or via respiratory droplets, ingestion, or vector transmission. Once inside, the pathogen can multiply, evade the immune system, and cause damage to tissues and organs. The body's immune response, while crucial for fighting off the infection, can sometimes exacerbate the condition through inflammation or other mechanisms. Effective treatment involves targeting the pathogen directly, supporting the immune system, and managing symptoms to prevent complications. Understanding the dynamics of infection is critical for developing preventive measures and therapeutic interventions.
