Influenza, commonly known as the flu, is a highly contagious viral infection that affects a large number of individuals at some point in their lives. The duration of the flu is usually around 5 to 7 days, but it is not uncommon for individuals to experience lingering fatigue for several weeks. In certain situations, medical intervention may be necessary as the flu can give rise to severe complications such as viral pneumonia and sinus infections.
Fever: A Key Symptom of the Flu
When it comes to flu cases, fever is often the first sign that something is amiss. Lasting for an average of four to five days, a fever serves as the body’s natural defense against the flu virus. While a mild increase in body temperature may occur with a common cold, it is typically the high temperatures that are indicative of influenza, often reaching 102 degrees or higher. Differentiating between a common cold and the flu can be challenging, especially in children, as their body temperatures tend to run higher both when healthy and when ill.
Muscle Pain: A Common Symptom of the Flu
Experiencing full body aches is undoubtedly one of the reasons why having the flu can make us feel utterly miserable. However, it is crucial to pay attention to the development of red and swollen joints, as they may indicate that the condition has advanced and immediate medical care is necessary. Alongside these joint symptoms, muscle tenderness can also arise in various areas such as the chest, back, and legs. The soreness in these muscles can be attributed to the activation of white blood cells and the immune system as they diligently combat the flu virus.