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Pneumonia fills the lung's alveoli with fluid, hindering oxygenation. The alveolus on the left is normal, whereas the one on the right is full of fluid from pneumonia. 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]
It is the most common bacterial pneumonia found in adults, the most common type of community-acquired pneumonia, and one of the common types of pneumococcal infection. The estimated number of Americans with pneumococcal pneumonia is 900,000 annually, with almost 400,000 cases hospitalized and fatalities accounting for 5-7% of these cases. [2]
Pneumonia is a lung infection characterized by symptoms such as fever, chills, coughing, rapid or labored breathing, and chest pain. [28] For the elderly, those who contract pneumonia have also shown these lesser nonspecific symptoms, but also tend to show that they have tachypnea a few days before clinical certainty that they have contracted ...
Dr. Melamed says that coughing, fever, chills and muscle aches are all common symptoms of pneumonia. "The symptoms of pneumonia can vary widely depending on the patient's age, other conditions ...
The tell-tale signs of walking pneumonia are not obvious. Illnesses caused by mycoplasma pneumoniae tend to be milder than infections caused by the more common bacterial pneumonia, streptococcus ...
Necrotizing pneumonia (NP), also known as cavitary pneumonia or cavitatory necrosis, is a rare but severe complication of lung parenchymal infection. [ 1 ] [ 2 ] [ 3 ] In necrotizing pneumonia, there is a substantial liquefaction following death of the lung tissue, which may lead to gangrene formation in the lung.
The symptoms of pneumonia can vary depending on the germ that causes the infection, but early symptoms of viral and bacterial pneumonia are often similar and mimic those of a cold or flu.
Diseases such as emphysema and habits such as smoking result in more frequent and more severe bouts of pneumonia. In children, recurrent pneumonia may indicate cystic fibrosis or pulmonary sequestration. Immune problems - Immune-deficient patients, such as those with HIV/AIDS, are more likely to develop pneumonia.