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The prodrome is a period during which an individual experiences some symptoms and/or a change in functioning, which can signal the impending onset of a mental health disorder. [5] It is otherwise known as the prodromal phase when referring to the subsyndromal stage or the early abnormalities in behavior, mood, and/or cognition before illness ...
During this period (usually days to weeks post-exposure) fifty to ninety percent of infected individuals develop an influenza or mononucleosis-like illness called acute HIV infection (or HIV prodrome), [2] [3] the most common symptoms of which may include fever, lymphadenopathy, pharyngitis, rash, myalgia, malaise, mouth and esophageal sores ...
The period from the time of infection to the time of becoming infectious is called the pre-infectious period or the latent period. During the pre-infectious or latent period, a host may or may not show symptoms (i.e. the incubation period may or may not be over), but in both cases, the host is not capable of infecting other hosts i.e ...
The clinical period is when the patient finally presents clinical signs and symptoms. That is: when the disease is clinically expressed and the affected seek health care. During this phase, if the pathological process keeps evolving spontaneously without medical intervention, it will end in one of three ways: recovery, disability, or death.
The infectious period can start before, during or after the onset of symptoms, and it may stop before or after the symptoms stop showing. It is also known in the literature by a variety of synonymous terms such as the infective period , the period of infectiousness , communicability period , the period of communicability , contagious period ...
After the latency period (but before clinical infection) the infected person can transmit the disease without signs of any symptoms. 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 ...
Some prodromal symptoms are present inter-episodically as well as during acute phases of illness. The majority of affected people can identify triggers that may precede an attack. The most common are various foods, infections (such as colds ), menstruation , extreme physical exertion, lack of sleep, and psychological stresses , both positive ...
The serial interval in the epidemiology of communicable (infectious) diseases is the time between successive cases in a chain of transmission. [1]The serial interval is generally estimated from the interval between clinical onsets (if observable), in which case it is the 'clinical onset serial interval'.