21. Doctors diagnosed Pneumocystis carinii, a pneumonia that is a common complication of AIDS . Tests confirmed that he had AIDS. 22. People who know they have HIV can protect themselves against infections common with AIDS, including tuberculosis and pneumocystis carnii pneumonia. 23. Six patients had pneumonia ( due to Pneumocystis carinii ), and one had necrotizing toxoplasmosis of the central nervous system. 24. Once their immune system loses the ability to fight off infection, they typically contract such illnesses as pneumocystis carinii pneumonia. 25. The NIH researchers studied the lymph nodes of AIDS patients with two common infections, known as Pneumocystis carinii and Mycobacterium avium. 26. Bilateral pneumothorax ( pneumothorax on both sides ) is relatively common in people with pneumocystis pneumonia, and surgery is often required. 27. The causative organism of " Pneumocystis " pneumonia, it is an important human pathogen, particularly among immunocompromised hosts. 28. Other infections, including ( BEGIN ITALIC ) Pneumocystis carinii pneumonia, ( END ITALIC ) seized the opportunity to attack his lungs. 29. Patients with advanced AIDS and concomitant pneumocystis pneumonia ( PCP ) are in serious danger of acute respiratory distress syndrome ( ARDS ). 30. The causative organism of PCP is distributed worldwide and " Pneumocystis " pneumonia has been described in all continents except Antarctica.