👉 Infection is a process where a pathogen, such as a bacterium, virus, or parasite, invades and takes control of a host's body, leading to disease. This occurs when the pathogen breaches the body's defenses, often through entry points like cuts, mucous membranes, or via inhalation. Once inside, the pathogen begins to multiply and can cause damage to host tissues, triggering an immune response. However, if the infection is severe or the host's immune system is compromised, the pathogen can establish itself, leading to symptoms and potential complications. The connection between infection and disease lies in this interaction: the presence of the pathogen disrupts normal bodily functions, causing illness and potentially leading to conditions ranging from mild discomfort to life-threatening conditions. Understanding this connection is crucial for developing effective treatments and preventive measures.
