In the United States, influenza and respiratory syncytial virus (RSV) are the most common causes of viral pneumonia. Many different types of bacteria, such as Haemophilus influenzae and Staphylococcus aureus, as well as other viruses and more rare fungi, can cause pneumonia.
Pneumonia can also result from a ventilator known as pneumonia associated with the ventilator. Pneumonia can vary in severity from mild to fatal. It is heavier for babies and toddlers, people over 65 and people with health problems or weakened immune systems.
Your lungs consist of 2 main parts: the respiratory tract (also called bronchi) and the alveoli (also called Airsacs). As you breathe, the air flows through your airways in your alveoli. Oxygen enters the blood from the alveoli, while carbon dioxide leaves the blood.
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If you have pneumonia, your alveoli (irritated and swollen) will become inflamed and fill with fluid. This makes breathing more difficult. Pneumonia is usually caused by bacteria or viruses. It can also be caused by fungi or irritants that you inhale into your lungs.
Symptoms of pneumonia can develop suddenly within 24 to 48 hours or may be a few days slower. In the US, pneumonia occurs in about 8 of 1000 adults per year. It is more widespread in the fall and winter.
Pneumonia can affect people of all ages, but is more common and can be more severe in certain groups of people, such as very young or elderly people. People in these groups more often need hospital treatment if they get pneumonia. In general, it is certain that someone with pneumonia is close to other people, including family members.
People with a weakened immune system, however, are less able to fight infections. Therefore, contact with pneumonia should be avoided. Pneumonia is often caused by viruses or bacteria that are transmitted from one person to another. But healthy people can usually fight these bacteria without developing pneumonia.
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In general, it is certain that someone with pneumonia is close to other people, including family members. It can contribute to the prevention of pneumonia and other respiratory tract infections by adhering to good hygiene practices, such as: For example, wash your hands regularly and disinfect the surfaces that you most often touch.
Pneumonia can be life-threatening if left untreated, especially in smokers, heart conditions, weakened immune systems or lung problems, children younger than 2 years with signs and symptoms, and adults over 65 years of age. People who receive chemotherapy or take medicines that suppress the immune system.
You should consult your doctor if you have a cough that does not go away, shortness of breath, chest pain and fever. You should also consult your doctor if you suddenly feel worse after a cold or flu. Pneumonia acquired by the community is the most common form of pneumonia.
You can log in in public areas (such as work, school, supermarket or gym). Bacteria, viruses, fungi or irritants in the air can cause pneumonia caused by the population. The bacterium Streptococcus pneumoniae is the main cause of this type of pneumonia.
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This type of pneumonia can also develop after a cold or flu. Aspiration pneumonia is a type of pneumonia that develops after inhalation of particles in the lungs. This usually happens when small particles enter your lungs after vomiting and you are not strong enough to remove the particles from your lungs.
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