Causes of Colds

• Of the viruses that cause a cold, the most commonly occurring subtype is a group that lives in the nasal passages known as the "rhinovirus." Other less common cold viruses include coronavirus, adenovirus, and respiratory syncytial virus (RSV).
  
  
• Contrary to popular belief, the vast majority of cold viruses do not spread through the air and seldom are transmitted from airborne particles expelled when someone with a cold coughs or sneezes.
  
  
• The primary means of spreading a cold is through hand-to-hand contact or from objects that have been touched by someone with a cold.
  
  
  • The typical transmission occurs when a cold sufferer rubs his or her nose and then, shortly thereafter, shakes hands with someone who, in turn, touches his or her own nose or eyes.
    
    
  • Alternatively, virus transmission often occurs via doorknobs and other hard surfaces, such as subway handrails, grocery carts, office telephones, and computer keyboards. 

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Common Cold - What You Do To Avoid

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