My interest was inspired by the observed variation in incubation times for different strains of Covid-19, however I ask the question in the broader sense as it seems hard to find an answer in general.
Does the presence of immunity affect the duration of incubation period? I would have thought the body's ready ability to identify and defend against a virus may mean that it is identified sooner following infection. But I can't find evidence to confirm or refute this idea. Would really appreciate any thoughts!