Pneumonia is an infection in the lungs caused by bacteria, viruses, fungi, or parasites. It can be classified as either typical or atypical, depending on the type of organism causing the infection.
Typical pneumonia is caused by bacteria such as Streptococcus pneumoniae, Haemophilus influenzae, or Moraxella catarrhalis. It is the most common form of pneumonia and is usually seen in older adults, young children, and those with weakened immune systems. Symptoms of typical pneumonia include fever, cough, chest pain, and difficulty breathing. Treatment usually involves antibiotics and rest.
Atypical pneumonia, also known as walking pneumonia, is caused by viruses or bacteria that are not as easily killed by antibiotics. It is usually seen in younger adults and is often milder than typical pneumonia. Symptoms include fever, sore throat, headache, and fatigue. Treatment typically involves rest, fluids, and over-the-counter medications such as ibuprofen or acetaminophen.
In both types of pneumonia, the infection can cause serious complications if not treated properly. These can include respiratory failure, sepsis, and even death. For this reason, it is important to seek medical attention if symptoms of pneumonia appear.