Mycoplasma pneumoniae is a type of bacteria that causes respiratory infections, particularly atypical pneumonia. Unlike many other bacteria, it lacks a cell wall, which makes it unique and resistant to certain antibiotics. This organism is often spread through respiratory droplets when an infected person coughs or sneezes. Infections caused by Mycoplasma pneumoniae are more common in children and young adults. Symptoms may include a persistent cough, fever, and fatigue. Diagnosis typically involves clinical evaluation and laboratory tests, while treatment usually consists of antibiotics that are effective against this specific type of bacteria.