Influenza-like illness (ILI), also known as acute respiratory infection (ARI) and flu-like syndrome/symptoms, is a medical diagnosis of possible influenza or other illness causing a set of common symptoms. Here, SARI refers to Severe Acute Respiratory Infection.Source: Wikipedia
The most common causes of flu-like syndrome are common cold, flu, and chronic obstructive pulmonary disease (copd). Other possible causes, such as acute sinusitis, are more rare.
Within all the people who go to their doctor with flu-like syndrome, 61% report having cough, 50% report having fever, and 37% report having sore throat.
Patients with flu-like syndrome often receive complete blood count, plain x-ray, intravenous fluid replacement, urinalysis, kidney function tests, glucose measurement, electrolytes panel and influenzavirus antibody assay .
The most commonly prescribed drugs for patients with flu-like syndrome include oseltamivir (tamiflu), codeine / promethazine, benzonatate, robitussin ac, guaifenesin / hydrocodone, cefotaxime, dextromethorphan / guaifenesin / pseudoephedrine, phenol topical, dextromethorphan / promethazine, lipase, ribavirin, amylases and codeine / phenylephrine / promethazine .
Groups of people at highest risk for flu-like syndrome include race/ethnicity = black.