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Lower respiratory tract infection (LRTI) is a term often used as a synonym for pneumonia but can also be applied to other types of infection including lung abscess and acute bronchitis. Symptoms include shortness of breath , weakness, fever , coughing and fatigue. [ 3 ]
RSV, or respiratory syncytial virus, usually causes mild symptoms akin to cold that go away on their own. But for babies, some young children and older adults, it can be serious.
The lower respiratory tract consists of the trachea (windpipe), bronchial tubes, bronchioles, and the lungs. [6] Lower respiratory tract infections (LRIs) are generally more severe than upper respiratory infections. LRIs are the leading cause of death among all infectious diseases. [7] The two most common LRIs are bronchitis and pneumonia. [8]
Chronic bronchitis is a lower respiratory tract disease, [26] defined by a productive cough that lasts for three months or more per year for at least two years. [1] [10] The cough is sometimes referred to as a smoker's cough since it often results from smoking.
The most common lower respiratory tract infection is pneumonia, an infection of the lungs which is usually caused by bacteria, particularly Streptococcus pneumoniae in Western countries. Worldwide, tuberculosis is an important cause of pneumonia.
Adenovirus infection is a contagious viral disease, caused by adenoviruses, commonly resulting in a respiratory tract infection. [ 1 ] [ 9 ] Typical symptoms range from those of a common cold , such as nasal congestion , rhinitis , and cough , to difficulty breathing as in pneumonia . [ 9 ]
This causes difficulty in breathing and coughing as the lower respiratory tract tries to get rid of the fluid in the lungs. You can be more prone to developing this infection if you have asthma, flu, heart disease, or cancer [16] Bronchitis is another common infection that takes place in the lower respiratory tract. It is an inflammation of the ...
One of the most common causes is Staphylococcus aureus and often follows a recent viral upper respiratory infection. Bacterial tracheitis is a rare complication of influenza infection. [ 4 ] It is the most serious in young children, possibly because of the relatively small size of the trachea that gets easily blocked by swelling.