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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 ]
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]
At baseline, walking pneumonia is a respiratory tract infection, causing illnesses that can range from mild to severe, per the CDC. It can take one to four weeks to develop symptoms of walking ...
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.
The infection causes mild, cold-like symptoms but it can lead to severe lung infections like pneumonia and infant bronchiolitis and is especially dangerous to toddlers under two or with other ...
Pneumonia frequently starts as an upper respiratory tract infection that moves into the lower respiratory tract. [55] It is a type of pneumonitis (lung inflammation). [56] The normal flora of the upper airway give protection by competing with pathogens for nutrients.
The symptoms often clear up by themselves, though they can cause lower respiratory tract infections among children, older adults and those immunocompromised. “The human metapneumovirus is not a new virus, and has been with humans for at least several decades,” said Wang Liping, a researcher at the Chinese Center for Disease Control and ...