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Do you know when to call the doctor about flu? Learn more about flu symptoms, flu tests, and how you can avoid serious problems with flu.
If you have heart disease, catching a cold may lead to serious problems. Learn what to do so you can prevent serious cold complications and stay well.
Learn how to treat a cold properly and prevent more serious health problems when you have a chronic medical condition such as asthma, heart disease, diabetes, emphysema, or HIV/AIDS.
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