Common cold or the flu
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The common cold and the flu (or influenza) are both contagious respiratory illnesses caused by viruses. They share many similar symptoms, but they are 2 different conditions.
Cold symptoms are generally milder. They develop slowly and can include:
✔fever up to 102°F
✔runny or stuffy nose (often with green- or yellow-colored discharge)
✔sore throat
✔cough
✔muscle aches
✔headache
✔watery eyes.
Flu symptoms are more severe. They usually appear suddenly and can include:
✔fever over 102°F
✔stuffy nose
✔nausea
✔chills and sweats
✔fatigue
✔muscle aches, especially in your back, arms and legs
✔cough
✔headache
✔loss of appetite
✔vomiting and diarrhea (more common in children)