👉 Infections are illnesses caused by the invasion of harmful microorganisms, such as bacteria, viruses, fungi, or parasites, into the body. These pathogens can enter through various routes, including the respiratory tract, skin, mucous membranes, or via ingestion. Once inside, they multiply and disrupt normal bodily functions, leading to symptoms ranging from mild discomfort to severe illness. The body's immune system responds by mounting an attack, but if the infection is severe or the immune response is compromised, it can lead to complications. Understanding the specific venues of infection—where these pathogens typically enter or reside within the body—is crucial for effective prevention and treatment. For instance, respiratory infections often begin in the nose and throat, while urinary tract infections start in the bladder. Each type of infection requires tailored medical interventions to clear the pathogen and restore health.
