Understanding the Common Cold and How to Prevent Infections
We can spread the cold virus by touching the secretions on surfaces and on skin and then touching our eyes or nose. Some respiratory secretions can also be transported briefly in the air and then inhaled.
Viruses can cause infection by overcoming the defense system that all of us have. The mucus in our nose and throat traps the pollen, dust, bacteria and viruses that we breathe in..
We have all come in contact with someone who has a cold or we have ourselves come down with a cold at one time or another. It can take weeks to get over these symptoms and they can distract us from our work, school or even from enjoying fun things..
Colds strike children, especially those in schools or daycare centers. Individuals over age 60 have as few as one cold per year..
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The symptoms of the common cold usually start 2 to 3 days after infection. The symptoms can include: runny nose, stuffy nose, swelling of sinus membranes, sneezing, sore throat, cough and headache. Cold symptoms can last from two to 14 days with a average time of one week. Frequent symptoms may be a sign of allergy rather than a cold..
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It is thought that colds increase during fall and winter because people spend more time indoors where they have more contact with other people.
Understanding these symptoms and when colds are occurring can be important when it comes to preventing the spread of infection among individuals. Asking individuals to cover their mouth and nose when sneezing or coughing is also important..
Viruses cause colds. There are over 200 known viruses that can cause symptoms of the common cold.