👉 An infection is a condition where harmful microorganisms, such as bacteria, viruses, fungi, or parasites, invade and multiply within a part of the body, disrupting normal cellular functions and causing illness. When these pathogens enter the body, they can enter through breaks in the skin, mucous membranes, or via the respiratory, digestive, or urinary tracts. Once inside, the microorganisms replicate, often overwhelming the body's natural defenses, which can lead to symptoms like fever, inflammation, pain, and tissue damage. The immune system responds by attempting to fight off the infection, but if the pathogens are too numerous or resilient, the infection can persist, leading to more severe health issues. Treatment typically involves antibiotics for bacterial infections, antiviral medications for viruses, antifungal treatments for fungi, or antiparasitic drugs, depending on the type of pathogen involved.
