EVERYDAY SCIENCE

Detailed explanation-1: -Rhinovirus is the causal agent for about 50% of common colds. Human rhinovirus (HRV) has a special affinity for the nasal airway mucosa (rhino means nose). Rhinoviruses can infect ciliated cells in the nasal epithelium but may also infect other nasal cells.

Detailed explanation-2: -Influenza is a viral infection that affects mainly the nose, throat, bronchi and, occasionally, lungs.

Detailed explanation-3: -Causes of the Common Cold Many different respiratory viruses can cause the common cold, but rhinoviruses are the most common. Rhinoviruses can also trigger asthma attacks and have been linked to sinus and ear infections.

Detailed explanation-4: -Most colds are caused by viruses-known as rhinoviruses-carried in invisible droplets in the air or on things we touch. These viruses can get into the protective lining of the nose and throat, setting off an immune system reaction that can cause a sore throat, headache, and trouble breathing through the nose.

Detailed explanation-5: -An upper respiratory infection (URI), also known as the common cold, is one of the most common illnesses, leading to more primary care provider visits and absences from school and work than any other illness every year.