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Influenza is a contagious respiratory illness caused by strain A or B viruses.
Flu appears most frequently in winter and early spring.
The flu virus attacks the body by spreading through the upper and/or lower respiratory tracks.
Symptoms include fever, difficulty breathing
Coughing, sneezing, nausea
Congestion, runny nose and body aches
Diagnosis and Interventions
Flu can be diagnosed based on symptoms and clinical judgment
Flu can also be diagnosed by an influenza diagnostic test
The flu is treated primarily with rest and fluid to fight the infection
Over-the-counter anti-inflammatory pain relievers may help with symptoms
An annual vaccine can help prevent the flu and limit its complications
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