Common cold is an ailment that affects the upper
respiratory tract of a person i.e. nose and throat. It is basically
caused by picornaviruses, including rhinoviruses or coronaviruses.
Though a harmless disease, common cold is highly contagious and can
spread easily, and rapidly, from one individual to other. On a normal
basis, it strikes an adult about three to four times in a year. For the
preschoolers, the strike rate is about 6 to 10 times in a year. People,
who are struck with common cold, generally get relief from it in about a
week's time. There are various reasons for the occurrence of common
cold. Read on to know more about its causes and symptoms.
Causes Of Common Cold
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