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Influenza, commonly known as "the flu", is an infectious disease caused by an influenza virus. 

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Influenza, commonly known as "the flu", is an infectious disease caused by an influenza virus. 

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It's symptoms include but are not limited to the following: pain in the muscles,cough that can be dry or with phlegm, whole body  chills, dehydration, fatigue, fever, flushing, loss of appetite, body ache, or sweating, nasal congestion, runny nose, or sneezing, chest discomfort, head congestion, headache, nausea, shortness of breath, sore throat, and even swollen lymph nodes.

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The single best way to prevent contracting influenza is to get vaccinated each year, but good health habits like covering your cough and washing your hands often can help stop the spread of germs and prevent respiratory illnesses such as the flu.

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Influenza isn't particular on who can contract it but it can be deadly, especially in high-risk groups such as children, the elderly, health care workers, and people who have chronic illnesses such as asthma, diabetes, heart disease, or are immuno-compromised among others so it is advised to get vaccinated yearly.

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People with the flu are advised to get plenty of rest, drink plenty of liquids, avoid using alcohol and tobacco and, if necessary, take medications such as acetaminophen to relieve the fever and muscle aches associated with the flu.