👉 Infection, particularly from pathogens like bacteria, viruses, or fungi, occurs when these microorganisms breach the body's natural defenses and establish themselves in tissues or bodily fluids. This can happen through various routes, such as cuts, mucous membranes, or even inhalation. Once inside, pathogens can multiply rapidly, triggering an immune response that, if unchecked, can lead to inflammation, tissue damage, and systemic illness. Infections can range from mild, like a common cold, to severe conditions such as sepsis, which can be life-threatening if not treated promptly. Factors like weakened immunity, close contact with infected individuals, or exposure to contaminated environments increase the risk of infection, highlighting the importance of hygiene, vaccination, and timely medical intervention to prevent and manage infectious diseases effectively.
