👉 Infection is a process where a pathogen, such as a virus or bacterium, enters a host and begins to multiply, often leading to disease. This motion involves several key steps: the pathogen adheres to specific receptors on host cells, gains entry through mechanisms like endocytosis or direct penetration, and then replicates within the host cell or releases new infectious particles into the environment. These particles can then infect neighboring cells, spreading the infection throughout the body. The interaction between the pathogen and host cells is highly specific, with pathogens evolving to exploit cellular machinery for their own replication. This dynamic process can result in symptoms ranging from mild discomfort to severe illness, depending on the pathogen's virulence and the host's immune response. Understanding this motion is crucial for developing strategies to prevent and treat infections.
