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All of us have probably experienced having a cold. Colds are responsible for 22 million missed school days a year in the United States. Some estimates indicate Americans suffer 1 billion colds a year! For most peoples, colds are mild and the symptoms disappear within a couple of weeks.
The older one gets, the less they suffer from colds. People over 60 have less than 1 cold a year while adults average 2-4 a year and children 6-10 a year. This is due to the closer contact between children than older people.
There are over 200 known viruses that cause cold-like symptoms. Some of these can produce serious illnesses while others do not. Rhinoviruses cause 35% of all adult colds and they are most active in the fall, spring and summer. Coronaviruses cause a large percentage of adult colds too and they are primarily active in the winter and spring. Other viruses that can also cause more severe illnesses are responsible for 15% of colds and some of the causes of colds are yet identified. There is no evidence that exposure to cold weather, getting chilled or overheated, or having enlarged tonsils can cause a cold though the viruses that cause colds survive better when the humidity is low.
In the United States, most colds occur during the fall and winter. The symptoms are: mucus buildup in the nose, difficulty in breathing through the nose, sinus swelling, sneezing, sore throat, coughing, headaches and a slight fever. (Children may experience higher fevers.) These symptoms last up to 2 weeks but most people recover in 1 week. Colds may lead to bacterial infections. Bacterial infections should be treated with antibiotics. A high fever, swollen glands, earache or severe sinus pain may indicate a bacterial infection.
Colds spread when the germs are transferred from an infected person to another person. This can happen by touching any surface that has the germs and then touching your eyes or nose. The germs may be on an infected person’s skin or on a telephone, railing or other surface. One may also be infected by breathing air containing drops of mucus full of cold germ.
While there is no cure for the common cold, one may get relief by resting, drinking plenty of fluids, gargling with warm salt water or using throat lozenges. Aspirin, acetaminophen, nonprescription cold remedies and antihistamines may relieve some of the symptoms but normally do not prevent or shorten the length of the illness. One should always exercise caution when taking any medication. Antibiotics do not help treat colds, which are viral infections.
To try to prevent contracting or spreading a cold, one should not touch their eyes and nose unless they have washed their washed their hands, avoid people with colds and cover your nose and mouth when sneezing. Rhinoviruses can live up to 3 hours on the skin or other objects. Disinfecting surfaces may prevent the spread of colds.
There is no scientific evidence that taking vitamin C or Echinacea helps prevent or relieve colds.
(Extracted from The Common Cold on the National Institutes of Health website.)  |