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What are the different types of flu viruses?
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The different types of flu viruses include Influenza A, B and C. Influenza A is the most common type of flu virus and can cause a wide range of symptoms including fever, chills, coughing, sore throat, runny or stuffy nose, body aches, headaches and fatigue. Influenza B causes milder symptoms than influenza A, such as fever, tiredness, body aches, and mild respiratory issues. Influenza C usually causes milder symptoms than either influenza A or B, like fever, headache, and fatigue.