Common cold is a viral disease that spreads easily through air and affect the healthy person.
Explanation:
Common cold spreads by more than 200 virus species include rhinovirus,picornavirus etc. that affects the respiratory tract in the human body.
This virus is dangerous because it can easily spreads through air and contact with the affected person like shaking hand or by touching any object .
The virus may alive for a long period of time that is more than 18 hour
Thus this is difficult to control and is prevented by routine hand wash and to keep distance from the affected person so that it can't contaminate through the affected person.
