👉 Local infection, also known as a localized infection, occurs when a pathogen, such as bacteria, viruses, fungi, or parasites, invades and multiplies within a specific part of the body. This type of infection is confined to one area rather than spreading systemically throughout the entire organism. For example, a skin infection like cellulitis starts on the skin's surface and can spread if left untreated, but initially remains localized. The immune response in the affected area often begins immediately, with white blood cells and other defenses working to contain and eliminate the invader. However, if the infection is severe or the host's immune system is compromised, it can lead to more serious complications. Local infections are typically diagnosed through physical examination and may require targeted treatments such as antibiotics, antifungals, or antifungal medications, depending on the causative agent.
