Early Flu Symptoms
Article Sources
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- 3. Eccles, Ron. “Understanding the symptoms of the common cold and influenza.” The Lancet. Infectious diseases vol. 5,11 (2005): 718-25. doi:10.1016/S1473-3099(05)70270-X
- 4. Evans, Sharon S et al. “Fever and the thermal regulation of immunity: the immune system feels the heat.” Nature reviews. Immunology vol. 15,6 (2015): 335-49. doi:10.1038/nri3843
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6. Runny Nose
Runny nose is a classic early sign of the flu. It occurs as a reflex, much like sneezing, and is a part of the immune system’s response to an illness such as the flu. The color of the mucus helps to indicate whether or not the infection is a virus or bacteria which can help healthcare providers to narrow down their diagnosis and treatment plan.3Eccles, Ron. “Understanding the symptoms of the common cold and influenza.” The Lancet. Infectious diseases vol. 5,11 (2005): 718-25. doi:10.1016/S1473-3099(05)70270-X
Nasal congestion is typically a symptom that will occur later in illness like the flu. Sinus pain may also be a symptom of the flu and is due to pressure changes within the sinuses and also pressure changes of the blood vessels associated with the sinuses.3Eccles, Ron. “Understanding the symptoms of the common cold and influenza.” The Lancet. Infectious diseases vol. 5,11 (2005): 718-25. doi:10.1016/S1473-3099(05)70270-X
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