1. Mycoplasma pneumoniae is typically an asymptomatic carriage, as it is so common worldwide that most adults have developed immunity. For children, the infection is typically a Tracheobronchitis with Low Fever, Malaise, Headache, and a Dry Cough for 2 to 3 weeks (possibly with Pharyngitis occurring as well), followed by worsening symptoms for 2 weeks or more, which MAY lead into Atypical Pneumonia with PATCHY BRONCHOPNEUMONIA SEEN ON CHEST RADIOGRAPHS. Secondary complications include Paralysis, Myelitis (spinal cord), Pericarditis (heart membrane), Hemolytic Anemia (no erythrocytes in blood), Arthritis, and Mucocutaneous Lesions.
2. Mycoplasma genitalium typically causes Nongonococcal Urethritis (NGU) or Pelvic Inflammatory Disease.
3. Ureaplasma urealyticum typically causes NGU, Pyelonephritis (kidney), or SPONTANEOUS ABORTION.
4. Mycoplasma hominis typically causes Pyelonephritis, Postpartum Fevers, and Systemic Infections in the Immunocompromised.