Epilepsy should not be understood as a single disorder, but rather as syndromic with vastly divergent symptoms, all involving episodic abnormal electrical activity in the brain and numerous seizures.

After a single intramuscular injection, test primates have survived lethal challenge, while showing no clinical symptoms.

The primary stage classically presents with a single chancre ( a firm, painless, non-itchy skin ulceration ), secondary syphilis with a diffuse rash which frequently involves the palms of the hands and soles of the feet, latent syphilis with little to no symptoms, and tertiary syphilis with gummas, neurological, or cardiac symptoms.

A single defect may result in a wide range of failure symptoms.

Dementia is not a single disease, but rather a non-specific illness syndrome ( i. e., set of signs and symptoms ) in which affected areas of cognition may be memory, attention, language, and problem solving.

Though particular drugs are prescribed for specific symptoms or syndromes, they are usually not specific to the treatment of any single mental disorder.

This is the first known case of a single high dose of TCDD dioxin poisoning, and was diagnosed only after a toxicologist recognized the symptoms of chloracne while viewing television news coverage of his condition.

A single abnormal copy of the gene is present in 1 in 100 people, who do not develop any symptoms ( they are carriers ).

Although the following classifications are well defined, it is rare for a case to fit neatly in a single category, and cross-over symptoms lead to under-diagnosis or mis-diagnosis.

However, in psychiatric classification, comorbidity does not necessarily imply the presence of multiple diseases, but instead can reflect our current inability to supply a single diagnosis that accounts for all symptoms.

A recent study of 20 confirmed yellow sac spider bites revealed no evidence of necrosis ; further review of international literature on confirmed bites revealed only a single bite with mild necrotic symptoms.

Related conditions include solitary plasmacytoma ( a single tumor of plasma cells, typically treated with irradiation ), plasma cell dyscrasia ( where only the antibodies produce symptoms, e. g. AL amyloidosis ), and POEMS syndrome ( peripheral neuropathy, organomegaly, endocrinopathy, monoclonal plasma cell disorder, skin changes ).

The symptoms of a cascade failure are easy to see: packet loss and high network latency, not just to single systems, but to whole sections of a network or the internet.

After a single feeding, there are no immediate symptoms of poisoning, but within a few hours, the insects become lethargic and stop eating.

Weight control is often " the single most important thing that we can do to help a dog with arthritis ", and consequentially " reducing the dog's weight is enough to control all of the symptoms of arthritis in many dogs ".

* John Haslam, resident apothecary at Bethlem Hospital in London, produces the book Illustrations of Madness: Exhibiting a Singular Case of Insanity, And a No Less Remarkable Difference in Medical Opinions: Developing the Nature of An Assailment, And the Manner of Working Events ; with a Description of Tortures Experienced by Bomb-Bursting, Lobster-Cracking and Lengthening the Brain, the first full-length study of a single psychiatric patient ( James Matthews ) in medical history and the original description of the symptoms of paranoid schizophrenia.

Quinidine ( Class 1A anti-arrhythmic ) can also cause cinchonism symptoms to develop with as little as a single dose.

Posit " that damage to a single process or system is responsible for a number of different dysexecutive symptoms ” ( Burgess, 2003, p. 309 ).

The American College of Sports Medicine estimates that 85 % of sports-related concussions go undiagnosed because athletes fail to report or deny symptoms and because subtle changes in brain function may not be obvious on a single examination.

Even a single missed dose can result in the withdrawal symptoms.

Within six hours of the onset of symptoms a single study has reported that CT is 100 % sensitive.

A further study, administering to a single AD patient via perispinal infusion, showed rapid and significant improvement in AD symptoms.

There is growing consensus that no single mechanism accounts for the full range of demonstrated symptoms.

# Adaptive stage-The person will not experience any negative symptoms, and believe they have capacity for alcohol.

To be diagnosed with mania according to the Diagnostic and Statistical Manual of Mental Disorders ( DSM ), a person must experience this state of elevated or irritable mood, as well as other symptoms, for at least one week, less if hospitalization is required.

The symptoms of plague depend on the concentrated areas of infection in each person: such as bubonic plague in lymph nodes, septicemic plague in blood vessels, pneumonic plague in lungs, and so on.

Urine from a person with no obvious symptoms of infection is generally much more sanitary than fresh feces.

Transmission occurs primarily by drinking water or eating food that has been contaminated by the feces of an infected person, including one with no apparent symptoms.

A person who consumes a dangerous amount of alcohol persistently can develop memory blackouts and idiosyncratic intoxication or pathological drunkenness symptoms.

The latency period is the time between infection and the ability of the disease to spread to another person, which may precede, follow, or be simultaneous with the appearance of symptoms.

In addition, it is argued that the current approach based on exceeding a threshold of symptoms does not adequately take into account the context in which a person is living, and to what extent there is internal disorder of an individual versus a psychological response to adverse situations.

Since the brain effects of hypoglycemia, termed neuroglycopenia, determine whether a given low glucose is a " problem " for that person, most doctors use the term hypoglycemia only when a moderately low glucose level is accompanied by symptoms or brain effects

First, although home glucose meter readings are often misleading, the probability that a low reading, whether accompanied by symptoms or not, represents real hypoglycemia is much higher in a person who takes insulin than in someone who does not.

When a person has not been unconscious, failure of carbohydrate to reverse the symptoms in 10 – 15 minutes increases the likelihood that hypoglycemia was not the cause of the symptoms.

When general health is good, the symptoms are not severe, and the person can fast normally through the night, experimentation with diet ( extra snacks with fat or protein, reduced sugar ) may be enough to solve the problem.

Various symptoms of infection: An infected person may have some or all symptoms, or may be asymptomatic.

* Post-concussion syndrome, a set of symptoms that a person may experience for weeks, months, or even years after a concussion

Some symptoms experienced by the person before a seizure may include dizziness, lightheadedness, tightening of the chest, and some experience things in slow-motion just prior to the seizure.

A person may become an asymptomatic carrier of typhoid fever, suffering no symptoms, but capable of infecting others.

It is common that a person carry a primary benign neoplasm for several years and have no visible symptoms at all.

Infected mosquitoes carry these organisms from person to person without exhibiting symptoms themselves.

In the United States the term " assisted outpatient treatment " or " AOT " is often used and refers to a process whereby a judge orders a qualifying person with symptoms of severe untreated mental illness to adhere to a mental health treatment plan while living in the community.

The prognosis is difficult to predict ; it depends on the subtype of the disease, the individual's disease characteristics, the initial symptoms and the degree of disability the person experiences as time advances.

In Münchausen syndrome, the affected person exaggerates or creates symptoms of illnesses in themselves to gain investigation, treatment, attention, sympathy, and comfort from medical personnel.