👉 Flux, in the context of infection, refers to the process by which pathogens—such as bacteria, viruses, fungi, or parasites—enter and establish themselves within a host organism. This entry can occur through various routes, including respiratory droplets, direct contact, contaminated food or water, or vectors like mosquitoes. Once inside, the pathogen begins to multiply and spread, often evading or manipulating the host's immune defenses. The interaction between the pathogen and the host's cells is dynamic; the pathogen may alter its surface proteins to avoid detection, while the host's immune system responds with an array of defenses, including inflammation and the production of antibodies. This ongoing battle can lead to infection, symptoms, and potentially long-term health consequences, depending on the pathogen's virulence and the host's immune response.
