Methods The foreign bodies were removed by the pliers of a fiberoptic bronchoscope after finding them in the lower respiratory tract in 8 patients.
Scientists think the protein may allow hybrid viruses to grow more efficiently in the lower temperatures of the upper respiratory tract, from which the virus can more easily spread to others.
A non-productive cough does not expel sputum from the respiratory tract.
Swine influenza (swine flu) is an acute viral infection of the respiratory tract in pigs caused by type A influenza virus.
Inflammation of the respiratory tract causes coughing, mucus secretion, aggravation of asthma and chronic bronchitis and makes people more prone to infections of the respiratory tract.
A flu infection thins the lining of the respiratory tract, making the lungs more vulnerable to bacteria that can cause pneumonia.
The atmosphere is often highly irritating to the eyes and to the respiratory tract.
Just as obesity has proved dangerous to human flu victims because of the weight on their chests, being bred to have a short, bent respiratory tract is dangerous for dogs.
Inversions can help clear the upper respiratory tract and drain secretions from the nose, allowing freshly oxygenated blood to flow into the oral cavity.
Further development of disseminated tumor can spread from the lungs directly penetrated the chest wall, mediastinum, heart, vascular and other neighboring Tube organizations; After blood lymphatic metastasis to other parts of the body through the respiratory tract or disseminated to other lobe.
Undernutrition increases the risk of upper respiratory tract infections and subsequent acute bronchitis, especially in children and older people.
One feature seen in many patients is the development of lower respiratory tract early in the illness.
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