👉 Transport-infection refers to the process by which pathogens move from one location to another within a host, facilitating their spread and potential to cause disease. This can occur through various routes, including respiratory droplets, bodily fluids, contaminated surfaces, or vectors like mosquitoes. Once a pathogen enters the body, it must navigate through different biological barriers, such as mucous membranes and immune defenses, to reach its target site. For example, bacteria can be transported via the bloodstream to distant organs, while viruses may enter through inhalation and travel along nerve pathways. Effective transport is crucial for infection, as it allows pathogens to establish themselves in new tissues, evade host defenses, and multiply, ultimately leading to illness.
