Recent Examples on the WebThe latent period between infection and first appearance of the virus was 4.0 days on average, while the incubation period between infection and first symptoms was 5.8 days on average (Figure 1A and 1B). William A. Haseltine, Forbes, 15 Nov. 2021 This is followed by a latent period with no apparent symptoms as metabolic acidosis develops. Beth Mole, Ars Technica, 23 June 2020