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The terms "intrinsic incubation period" and "extrinsic incubation period" are used in vector-borne diseases. The intrinsic incubation period is the time taken by an organism to complete its development in the definitive host. The extrinsic incubation period is the time taken by an organism to develop in the intermediate host. [citation needed]
Normally the egg is incubated outside the body. However, in one recorded case, the egg incubation occurred entirely within a chicken. The chick hatched inside and emerged from its mother without the shell, leading to internal wounds that killed the mother hen. [8] Embryo development remains suspended until the onset of incubation.
By convention, a communicable disease outbreak is declared over when a period of twice the incubation period of the infectious disease has elapsed without identification of any new case, however, for organisms with a short incubation period (e.g. fewer than ten days), a period of three times the incubation period is preferred. [11]
Egg incubation, sitting on or brooding the eggs of birds and other egg-laying animals to hatch them; Incubation (psychology), the process of thinking about a problem subconsciously while being involved in other activities; Incubation period, medical term for the time between being exposed to infection and showing first symptoms
This marks the end of the latent period (pre-infectious period) and simultaneously the beginning of the infectious period. As the disease becomes more severe, infectiousness increases. Meanwhile the host's body mounts immune responses to contain or eradicate the pathogens, and after a certain period of time, it may achieve that goal.
New research suggests that biological age — a measure of the body’s physiological state — could predict who is at higher risk for developing colon polyps, a key risk factor for colorectal ...
Generalized scheme of embryonic development. Slack "Essential Developmental Biology". Fig. 2.8. The initial stages of human embryogenesis. The sperm and egg fuse in the process of fertilization to form a fertilized egg, or zygote. [15] This undergoes a period of divisions to form a ball or sheet of similar cells called a blastula or blastoderm ...
Scrolling on social media is also a way to "disassociate" and give the brain a rest after a long day, Bobinet said. This is an "avoidance behavior," which the habenula controls.