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A subclinical infection—sometimes called a preinfection or inapparent infection—is an infection by a pathogen that causes few or no signs or symptoms of infection in the host. [1] Subclinical infections can occur in both humans and animals. [2] Depending on the pathogen, which can be a virus or intestinal parasite, the host may be ...
Symptomatic infections are apparent and clinical, whereas an infection that is active but does not produce noticeable symptoms may be called inapparent, silent, subclinical, or occult. An infection that is inactive or dormant is called a latent infection. [54] An example of a latent bacterial infection is latent tuberculosis.
This early or mild stage of infection whose symptoms stay below the level of clinical detection is called subclinical infection [7] and the individual concerned is called an asymptomatic carrier of the disease. For example, in HIV/AIDS, the incubation period lasts years longer than the latent period.
Subclinical and paucisymptomatic are other adjectives categorising either the asymptomatic infections (i.e., subclinical infections), or the psychosomatic illnesses and mental disorders expressing a subset of symptoms but not the entire set an explicit medical diagnosis requires.
There are many conditions including subclinical infections that display no symptoms, and these are termed asymptomatic. Signs and symptoms may be mild or severe, brief or longer-lasting when they may become reduced , or then recur (relapse or recrudescence) known as a flare-up. A flare-up may show more severe symptoms. [14]
Those who are "at low to moderate risk of cardiovascular disease without any evidence of subclinical disease on imaging or prior heart attack or stroke" should also avoid taking aspirin, Blaha adds.
Such infection is called subclinical infection. Incubation period (also known as the latent period or latency period ) is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation , and when symptoms and signs are first apparent. [ 1 ]
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