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influenza
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Influenza
Any of various viral infections primarily affecting the air passages, accompanied by systemic effects such as fever, chills, headache, joint and muscle pains, and lassitude. Treatment is with bed rest and analgesic drugs such as aspirin or paracetamol.
Depending on the virus strain, influenza varies in virulence and duration, and there is always the risk of secondary (bacterial) infection of the lungs (pneumonia). Vaccines are effective against known strains but will not give protection against newly evolving viruses. The 1918–19 influenza pandemic (see epidemic) killed about 20 million people worldwide.
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The cross represents the Greek Orthodox faith. Blue stands for the sea and sky. The shade has varied over the years. White symbolizes purity. Effective date: 22 December 1978.
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