title: Impairment of natural defenses. -I: Exogenous causes, mechanisms, and opportunistic infection.
mesh_terms: D000305:Adrenal Cortex Hormones / Q000009:adverse effects; D000758:Anesthesia / Q000009:adverse effects; D000900:Anti-Bacterial Agents / Q000009:adverse effects; D002056:Burns / Q000150:complications; D002175:Candida / Q000302:isolation & purification; D002404:Catheterization / Q000009:adverse effects; D002648:Child; D064420:Drug-Related Side Effects and Adverse Reactions; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes; D007239:Infections / Q000209:etiology*; D007267:Injections / Q000009:adverse effects; D019736:Prostheses and Implants / Q000009:adverse effects; D013514:Surgical Procedures, Operative / Q000009:adverse effects; D014612:Vaccines / Q000009:adverse effects; D014947:Wounds and Injuries / Q000150:complications
chemical_list: D000305:Adrenal Cortex Hormones; D000900:Anti-Bacterial Agents; D014612:Vaccines