opportunistic infection(redirected from Opportunisitc)
Also found in: Thesaurus, Medical, Wikipedia.
Related to Opportunisitc: Opportunistic disease
An infection by a microorganism or virus that normally does not cause disease but becomes pathogenic when the body's immune system is impaired, as in AIDS patients.
Switch to new thesaurus
|Noun||1.||opportunistic infection - any infection caused by a microorganism that does not normally cause disease in humans; occurs in persons with abnormally functioning immune systems (as AIDS patients or transplant patients receiving immunosuppressive drugs)|
infection - the pathological state resulting from the invasion of the body by pathogenic microorganisms
aspergillosis - an opportunistic infection by a fungus of the genus Aspergillus; characterized by inflammation and lesions of the ear and other organs