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Influenza-like illness is a nonspecific respiratory illness characterized by fever, fatigue, cough, and other symptoms that stop within a few days. Most cases of ILI are caused not by influenza but by other viruses (e.g., rhinoviruses, coronaviruses, human respiratory syncytial virus, adenoviruses, and human parainfluenza viruses).
Adenovirus infection is a contagious viral disease, caused by adenoviruses, commonly resulting in a respiratory tract infection. [1] [9] Typical symptoms range from those of a common cold, such as nasal congestion, rhinitis, and cough, to difficulty breathing as in pneumonia. [9]
Common variable immunodeficiency; Specialty: Immunology : Symptoms: Hypogammaglobulinemia, recurrent opportunistic infections, fatigue: Complications: Autoimmune manifestations; increased risk of malignancies such as gastric carcinomas, non-Hodgkin lymphoma; lymphocytic infiltration of tissues; nodular regenerative hyperplasia; enteropathy
Influenza A virus and influenza B virus co-circulate, so have the same patterns of transmission. [1] The seasonality of influenza C virus, however, is poorly understood. Influenza C virus infection is most common in children under the age of two, and by adulthood most people have been exposed to it.
The first/initial stage, known as the hemolymphatic phase, is characterized by non-specific, generalised symptoms [10] like: fever (intermittent), headaches (severe), [12] joint pains, itching, [9] [10] weakness, malaise, fatigue, weight loss, lymphadenopathy, and hepatosplenomegaly. [10] Diagnosis may be delayed due to the vagueness of initial ...
A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. [ 1 ] Examples include the common cold , gastroenteritis , COVID-19 , the flu , and rabies .
Fatigue in a medical context is used to cover experiences of low energy that are not caused by normal life. [2] [3]A 2021 review proposed a definition for fatigue as a starting point for discussion: "A multi-dimensional phenomenon in which the biophysiological, cognitive, motivational and emotional state of the body is affected resulting in significant impairment of the individual's ability to ...
The incidence of chronic fatigue is 12% at 6 months and 9% at 12 months, similar to Epstein–Barr virus and Q fever. [4] The only significant predictor of the likelihood of developing chronic symptoms is the severity of the acute illness itself. No other aspects of the patient's medical or psychiatric history have been found to be predictive.