Quite simply because it is not "the" common cold.
There are over 300 different 'common cold' diseases. That, by the way, is why you cannot create a vaccine for the cold. Once you have had one of the 300+ colds, you are immune to it, and will never catch it, again.
Since there are over 300 common cold diseases, there are many more of them than any other respiratory ailments.
Asthma, Lung cancer, Pneumonia, but the most common is probably chronic bronchitis and emphysema.
common cold
asthma
Respiratory diseases such as BRD (Bovine Respiratory Disease which covers shipping fever and pneumonia) is the most common disease that cattle die from. Digestive diseases come in second.
the most common system it effects is the respiratory system.it is a communicable disease spread by droplets.
One of the most common diseases of the system is Arthritus.: )
Respiratory diseases are the most common disease chickens get. Many times this can be controlled and cured with proper medication and nutrition.
Cardiovascular and Respiratory disease are most common in your later years.
The most common would be Pneumonia
The most common use of the respiratory system is the exchange of gases. When you exhale carbon dioxide, at the same time you inhale oxygen.
It's not a respiratory disease it is a type of cancer. Mesotheilioma.
Yes and No! TB is most common in the lungs but can affect the spine, skin, genitals, kidneys and brain
A Failure of the immune system
Lots of them. The most common is heart disease.
Cervical Cancer I think.