👉 Infections are a common part of the human body's response to various pathogens, such as bacteria, viruses, fungi, and parasites. When an infection occurs, these microorganisms invade or enter the body, often through breaches in the immune system's defenses or direct contact. The body's immune system then mounts a defense, typically involving white blood cells that target and destroy the invading pathogens. However, if the infection persists or is particularly virulent, it can lead to tissue damage, inflammation, and systemic symptoms like fever, pain, and swelling. Infections can range from mild, such as a common cold, to severe, like sepsis or pneumonia, which can be life-threatening if not treated promptly. Understanding infections is crucial for developing effective treatments and preventive measures, such as antibiotics, vaccines, and hygiene practices, to protect against and manage these conditions.
