Which stage of infection is the period time between invasion infectious agent into body and onset symptoms particular disease?

The stage of infection between the invasion of the infectious agent into the body and the onset of symptoms of a particular disease is known as the incubation period. During this period, the pathogen multiplies and spreads within the host's body, but the person may not experience any noticeable symptoms. The duration of the incubation period varies depending on the specific infectious agent, the route of transmission, and the individual's immune response. Some infections have short incubation periods of a few days, while others may have longer incubation periods that can span several weeks or months.