No one is immune to common cold, it is the most common viral disease to humans. Anyone can catch it, there is no cure for it yet and it is difficult to prevent it.
According to the Ambulatory Syllabus of Columbia University Medical Residency Program, the contagious nature of upper respiratory tract infections is the main reason why it is the common acute illness in the US and the world, and the reason for incurring absences from school or from work.
Viruses, not bacteria are the cause of common cold, influenza and most coughs. Antibiotics are only effective against bacterial illnesses and in some cases when used against cold or flu they can do more harm than good, the expert warned.