What is Upper Respiratory Tract Infection – Picture

What is Upper Respiratory Tract Infection?
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The upper respiratory tract infections are highly contagious in nature. The virus can spread form one person to another due to contact or even due to sneezing or coughing. The upper respiratory tract begins from the nose and consists of nasal passages, sinuses, pharynx and larynx. Know the causes and symptoms of upper respiratory tract infections.

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