👉 Infection occurs when a pathogen, such as a bacterium, virus, fungus, or parasite, enters a host and begins to multiply, often causing harm or disease. This process typically involves the pathogen adhering to and penetrating host cells, evading the immune system, and exploiting cellular machinery for replication. The fault lies in the host's inability to effectively prevent or eliminate the invading pathogen, leading to an imbalance in the body's internal environment. Factors such as a weakened immune system, poor hygiene, exposure to contaminated environments, or underlying health conditions can exacerbate this fault, making it easier for infections to take hold and spread. Effective prevention and treatment strategies, including vaccination, antibiotics, and proper hygiene, are crucial to mitigate the risk of infection and restore host health.
