👉 An infection is when a harmful microorganism, such as bacteria, viruses, or fungi, enters and takes control of a part of your body, like your skin, lungs, or bloodstream. This invasion disrupts normal bodily functions, leading to symptoms like fever, inflammation, or pain. The immune system typically fights off these invaders, but sometimes they can overwhelm the body's defenses, causing illness. Understanding infections is crucial for taking preventive measures and effective treatments.
