👉 Noninfection, also known as a self-infectious disease or self-replicating infection, is a condition where an organism does not need to acquire the pathogen in order to reproduce. It is characterized by the absence of any symptoms or signs of infection and can occur naturally, through exposure to pathogens that are already present in the environment, or from exposure to nonpathogenic microorganisms like bacteria or fungi. Noninfection occurs when a person has no symptoms or signs of infection,