10 Types of Respiratory Infections

6. Bronchiolitis

Bronchiolitis is another lower respiratory tract infection, this time affecting the bronchioles, the tiny airways of the lung, which become inflamed. Most common in young children and infants, the condition often resembles the common cold in the beginning stages. Over time though, it can lead to wheezing, labored breathing, vomiting, poor appetite, rapid heartbeat, and shallow breathing. Fortunately, most cases are mild and do not require specific treatment. If doctors do prescribe medication, bronchodilators that open the airways are most common.

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