Mycoplasma pneumoniae typically spreads via respiratory droplets released when an infected person coughs or sneezes, especially during close contact. Transmission is more common in crowded settings such as schools, dormitories, offices, and military facilities. The incubation period can be relatively long, and symptoms often start gradually, so individuals may transmit infection before they recognize they are ill. This organism is frequently linked to atypical or “walking” pneumonia, which may appear mild but can cause a persistent cough. Prevention focuses on hand hygiene, good ventilation, mask use in close-contact situations, and proper cough etiquette.