3 Results for virus enters

Asthma is a condition that affects the lungs. It is characterized by difficulty in breathing, wheezing, uncontrolled coughing, a tightening of the chest, and increased mucus production. It is a condition that can strike at any age at any time. An episode of asthma can vary in severity and last ...
Asthma is a condition that affects the lungs. It is characterized by difficulty in breathing, wheezing, uncontrolled coughing, a tightening of the chest, and increased mucus production. It is a condition that can strike at any age at any time. An episode of asthma can vary in severity and last ...
Bronchitis is the inflammation of the bronchi. It may develop suddenly, following a head cold (acute bronchitis), or it may persist or return regularly for many years, causing progressive degeneration of the bronchi and lungs (chronic bronchitis). Certain people are more susceptible than othe...