What is the cause of primary atypical pneumonia?

Study for the Apollon Bacteriology Test. Improve your knowledge with flashcards and multiple choice questions, each with hints and explanations. Get ready to excel on your exam!

Primary atypical pneumonia, often referred to as "walking pneumonia," is primarily caused by Mycoplasma pneumoniae. This organism is a type of bacteria that lacks a cell wall, which differentiates it from many other bacterial pathogens. Mycoplasma pneumoniae is known for causing respiratory infections that are usually milder and can present with symptoms such as a persistent cough, low-grade fever, and chest discomfort, distinguishing it from typical pneumonia, which often presents with more severe symptoms and is generally caused by bacteria that have a cell wall.

The absence of a cell wall means that standard antibiotics like penicillin, which target bacterial cell wall synthesis, are ineffective against infections caused by Mycoplasma pneumoniae. This characteristic is significant in understanding treatment options and the management of atypical pneumonia. The infection is often seen in younger populations, such as school-aged children and young adults, which is another distinguishing factor.

Other bacteria listed, such as Klebsiella pneumoniae, Streptococcus pneumoniae, and Staphylococcus aureus, are associated with typical pneumonia or more severe forms of respiratory infection that usually present with different clinical characteristics and require different treatment approaches. They are also more frequently associated with higher morbidity in their respective infections, contrasting with the

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