Pneumocystis jirovecii pneumonia primary prevention

Overview
In immunocompromised patients, prophylaxis with co-trimoxazole or regular pentamidine inhalations may help prevent PCP. Preventive therapy is recommended for:
 * Patients with AIDS who have CD4 counts below 200
 * Bone marrow transplant recipients
 * Organ transplant recipients
 * People who take long-term, high-dose corticosteroids
 * People who have had previous episodes of this infection