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How can I tell if I've got a cold or the flu?
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To determine whether you have the flu or a cold, it is important to take your temperature. A fever of 100.4°F (38°C) or higher indicates that you may have the flu. Other signs and symptoms of the flu include sore throat, runny nose, body aches, fatigue, and chills. If you experience any of these symptoms, it's best to contact your doctor for advice.