RSSAll Entries in the "Respiratory Diseases" Category

What is common cold? What are the causes of common cold?

The common cold is an infection of upper respiratory tract. Common cold is the most common disease in U.S. Sometimes it is simply declared a common cold contagious and results from different kinds of viruses. Common cold occurs due to variety of different viruses so our body usually fails to develop any specific resistance against all such common cold causing viruses. New viruses for common cold develop constantly.