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Cold & Flu

A cold is a mild viral infection of the upper respiratory tract lasting for few days while flu is an infection of the upper and lower respiratory tracts lasting for few days and weeks. However, flu can result in serious health problems such as pneumonia and bronchitis. Both flu and colds are caused by identical viruses of which there are around 200 known. The walls of the upper respiratory tract engorge and generate excess mucus resulting in congestion.

Common symptoms of cold begin with a sore throat, which goes away after 1-2 days, runny nose, and general malaise. Cold symptoms frequently last for about a week.  

The flu is more devastating with symptoms that include sore throat, headache, diarrhea, vomiting, fever, chills, and fatigue. Most flu symptoms gradually improve in 2-5 days. Pneumonia is the most common complication of flu affecting mostly the young, elderly, and people that have poor immune system and those with lung and heart diseases.

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