Disease Information for Opportunistic Infections

Clinical Manifestations
Signs & Symptoms
Constitutional symptoms

Opportunistic Infections; Opportunistic infections are mild to severe infectious diseases in a compromised host; The infections are caused by microorganisms that normally do not cause serious disease in healthy people; These infections may occur in individuals whose immune system or other physiological defenses are impaired or compromised in some way; The inability to resist such opportunistic infections is usually caused by an underlying disease or trauma, or from procedures and/or drugs that are used to treat another medical condition; Opportunistic infections may be caused by bacteria, fungi, viruses, or parasites; Symptoms vary according to the microorganism involved and the extent of involvement; Treatment or medical management of opportunistic infections may be difficult because some of these microorganisms may be resistant to standard antibiotic therapy; In some cases an affected individual may have a dysfunctional immune system (compromised) that is not able to fight the infection; {NORD]---------------------------. Immune deficiency or debilitation implied the saprophytic or opportunistic , unually suppressedeasily by healthy immune status, supervene;------------------------------------.Bacterial infections, multiple or recurrent; Candidiasis of bronchi, trachea, or lungs; Candidiasis, esophageal; Cervical cancer, invasive; Coccidioidomycosis, disseminated or extrapulmonary; Cryptococcosis, extrapulmonary ; Cryptosporidiosis, chronic intestinal (>1-mo duration);Cytomegalovirus disease (other than liver, spleen, or nodes); Cytomegalovirus retinitis (with loss of vision); Encephalopathy, HIV related Herpes simplex, chronic ulcer(s) (>1-mo duration); or bronchitis, pneumonitis, or esophagitis;Histoplasmosis, disseminated or extrapulmonary; Isoporiasis, chronic intestinal (>1-mo duration); Kaposi’s sarcoma; Lymphoid interstitial pneumonia and/or pulmonary lymphoid hyperplasia; Lymphoma, Burkitt"s (or equivalent term); Lymphoma, primary, of brain; Mycobacterium avium-intracellulare complex or Myobacterium kansasii, disseminated or extrapulmonary Mycobacterium tuberculosis, any site (pulmonary or extrapulmonary); Mycobactrium, other species or unidentified species, disseminated or extrapulmonary; Pneumocystis carinii pneumonia; Pneumonia, recurrent; Progressive multifocal leukoencephalopathy; Salmonella septicemia, recurrent; Toxoplasmosis of brain; Wasting syndrome of HIV infection; [Ferri Clinical advisor 2005]


External Links Related to Opportunistic Infections
PubMed (National Library of Medicine)
NGC (National Guideline Clearinghouse)
Medscape (eMedicine)
Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)