Communicable Diseases

Acute Febrile Respiratory Disease

Identification

Viral diseases of the respiratory tract may be characterized by fever, cough, increased respiratory rate and one or more systemic reactions, such as chills or chilliness, headache, general aching, malaise and anorexia; occasionally in infants by GI disturbances. Localizing signs also occur at various sites in the respiratory tract, either alone or in combination, such as rhinitis, pharyngitis or tonsillitis, laryngitis, laryngotracheitis, bronchitis, bronchiolitis, pneumonitis or pneumonia. There may be associated conjunctivitis. Symptoms and signs usually subside in 2–5 days without complications; infection may, however, be complicated by bacterial sinusitis, otitis media, or—more rarely—bacterial pneumonia. WBC counts and respiratory bacterial flora are within normal limits unless modified by complications.

In very young infants, it may be difficult to distinguish between pneumonia, sepsis and meningitis. Specific diagnosis depends on isolation of the causal agent from respiratory secretions in appropriate cell or organ cultures, identification of viral antigen in nasopharyngeal cells by FA, ELISA and RIA tests, and/or antibody studies of paired sera.

Acute Febrile Respiratory Disease has been found in Communicable Diseases

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