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  2. Incubation period - Wikipedia

    en.wikipedia.org/wiki/Incubation_period

    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]

  3. Egg incubation - Wikipedia

    en.wikipedia.org/wiki/Egg_incubation

    Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg.

  4. Disease outbreak - Wikipedia

    en.wikipedia.org/wiki/Disease_outbreak

    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]

  5. Incubation - Wikipedia

    en.wikipedia.org/wiki/Incubation

    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

  6. COVID-19 symptoms typically appear 5 days after infection - AOL

    www.aol.com/lifestyle/2020-03-11-covid-19...

    Understanding this incubation period—the time between when a virus enters a person’s body and when they start feeling sick—is crucial for health officials trying to make decisions about how ...

  7. Animal embryonic development - Wikipedia

    en.wikipedia.org/wiki/Animal_embryonic_development

    In developmental biology, animal embryonic development, also known as animal embryogenesis, is the developmental stage of an animal embryo. Embryonic development starts with the fertilization of an egg cell (ovum) by a sperm cell (spermatozoon). [1] Once fertilized, the ovum becomes a single diploid cell known as a zygote.

  8. Spawning - Wikipedia

    en.wikipedia.org/wiki/Spawning

    The spawn (eggs) of a clownfish.The black spots are the developing eyes. Spawn is the eggs and sperm released or deposited into water by aquatic animals.As a verb, to spawn refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning.

  9. Bordetella pertussis - Wikipedia

    en.wikipedia.org/wiki/Bordetella_pertussis

    The therapy is most effective when started during the incubation period or the catarrhal period. It is ideal for treatment should be within 1–2 weeks from onset of symptoms. When applied during the paroxysmal cough phase, the time of convalescence is not affected, only further transmission is reduced to 5–10 days after infection.

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