Pneumocystis carinii

Pneumocystosis is a protozoan disease caused by pneumocystis carinii infection. The main clinical manifestations are dry cough, dyspnea and cyanosis. Its pathogenic feature is interstitial pneumonia, so it is called pneumocystis carinii pneumonia (PCP). The disease is more common in immunocompromised or defective people and can be considered an opportunistic infection. Since the disease was found to have a high incidence and mortality in AIDS patients in the 1980s, studies of pulmonary cysticercosis, especially PCP, have gradually deepened.