With a median pay of $62K, Dell, Inc. Inside Sales Representatives make much more than the national average ($40K annually) for those in this field. Inside Sales Representatives can also look forward to large paychecks at Oracle ($51K), Ryerson, Inc. ($48K), and United Parcel Service (UPS), Inc. ($46K).
More than 200 different types of viruses are known to cause the common cold, with rhinovirus causing approximately 10%-40% of all adult colds. Other commonly implicated viruses include coronavirus, adenovirus, respiratory syncytial virus, and parainfluenza virus.
How cold viruses cause disease. Viruses cause infection by overcoming the body's complex defense system. The body's first line of defense is mucus, produced by the membranes in the nose and throat. Mucus traps the material we inhale: pollen, dust, bacteria, and viruses.