More information. 1  For a complete list of mercury-containing items â including consumer, medical, pharmaceutical, electrical, chemical, manufacturing and construction products â see the EPA's Table of Products That May Contain Mercury and Recommended Management Options..
In a typical infectious disease, incubation period signifies the period taken by the multiplying organism to reach a threshold necessary to produce symptoms in the host. In some diseases, as depicted in this diagram, latent period is shorter than incubation period.epending on the disease, the person may or may not be contagious during the incubation period. During clinical latency, an infection is subclinical. With respect to viral infections, in clinical latency the virus is actively replicating.
Incubation periods tend to be quite a bit shorter than the time it takes for gestation of comparably-sized mammals. A chicken, for example, has an incubation period of 20 days, and even larger birds like emus have incubation periods of only around 55 days.ithin similar animals, there is some variation as well: grizzly bears have an average gestation period of 225 days, but black bears have an average of 210 days, and polar bears have an average of 240 days.