prodromal phase

Experts call this period-when symptoms are vague and easy to miss-the prodromal phase.

When the virus reaches the brain, it rapidly causes encephalitis, the prodromal phase, and is the beginning of the symptoms.

Malignant smallpox is accompanied by a severe prodromal phase that lasts 3-4 days, prolonged high fever, and severe symptoms of toxemia.

During the initial or prodromal phase, which may last up to a week, common symptoms include fever, lack of appetite, headache, muscle aches, malaise, nausea, and/or vomiting.

This prodromal phase was followed 1-10 days later by the development of a papular rash that typically progressed through stages of vesiculation, pustulation, umbilication, and crusting.

ARC is "A prodromal phase of effects phase of infection with the human immunodeficiency virus (HIV).

Those who go on to develop schizophrenia may experience transient or self-limiting psychotic symptoms and the non-specific symptoms of social withdrawal, irritability, dysphoria, and clumsiness during the prodromal phase.

The differential diagnosis (and management) of depression in young populations requires considerable care and experience; for example, apparent depression in teenagers may later transpire to represent a prodromal phase of schizophrenia.

"The finding that treatment with a natural substance may prevent or at least delay the onset of psychotic disorder gives hope that there may be alternatives to antipsychotics for the prodromal phase [symptoms leading up to psychosis onset]," Amminger and colleagues suggest.

The prodromal phase, which precedes psychotic symptoms, is characterized by deterioration in school performance, social withdrawal, disorganized or unusual behavior, a decreased ability to perform daily activities, a deterioration in self-care skills, bizarre hygiene and eating behaviors, changes in affect, a lack of impulse control, hostility and aggression, and lethargy.