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Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing. A variety of organisms, including bacteria, viruses and fungi, can cause pneumonia.
You may start by seeing a primary care doctor or an emergency care doctor, or you may be referred to a doctor who specializes in infectious diseases or in lung disease (pulmonologist). Here's some information to help you get ready for your appointment and know what to expect.
Legionnaires' disease is a severe form of pneumonia — lung inflammation usually caused by infection. It's caused by a bacterium known as legionella. Most people catch Legionnaires' disease by inhaling the bacteria from water or soil.
If you’re considering getting vaccinated but aren’t sure if you’re up to date or what you may need, the CDC has an online tool for pneumococcal vaccinations to help get you started. But as always, talking with your healthcare team directly is the best way to get advice for your situation. Mayo Clinic does not endorse companies or products.
With walking pneumonia, you may feel like you have a cold. But symptoms are usually mild, so you likely won't need bed rest or a hospital stay. You may not feel the need to stay home from work or school. So you may be out walking around. That's how the illness got its name.
Symptoms specific to the type of infection, such as painful urination from a urinary tract infection or worsening cough from pneumonia. Symptoms of sepsis are not specific. They can vary from person to person, and sepsis may appear differently in children than in adults.
The risk of pleurisy increases if you get certain infections, such as the flu or pneumonia. Some medical conditions, such as lupus, TB and sickle cell disease also can increase your risk. And taking certain medicines or certain recreational drugs raise the risk of pleurisy.
Pneumonia. RSV is the most common cause of inflammation of the lungs (pneumonia) or the lungs' airways (bronchiolitis) in infants. These complications can occur when the virus spreads to the lower respiratory tract.
Croup. When the upper airway is infected with the virus that causes croup, tissues around the voice box (larynx) and the windpipe (trachea) will swell. When a cough forces air through this narrowed passageway, it may sound like a seal barking. Croup most often occurs in younger children. It usually isn't serious.
Most people recover from coccidioidomycosis-related pneumonia without complications. Others, such as people of Filipino and African heritage, and those with weakened immune systems, may become seriously ill.