opportunistic infection [ ŏp′ər-tōō-nĭs ′ tĭk ] An infection by a microorganism that normally does not cause disease but does so when lowered resistance to infection … An opportunistic infection is an infection caused by pathogens (bacteria, viruses, fungi, or protozoa) that take advantage of an opportunity not normally available, such as a host with a weakened immune system, an altered microbiota (such as a disrupted gut microbiota), or breached integumentary barriers. The guidelines discuss opportunistic infections that occur in the United States and ones that might be acquired during international travel, such as malaria. The HIV virus itself does opportunistic infection infection by an organism that does not ordinarily cause disease but becomes pathogenic under certain circumstances, as when the patient is immunocompromised. Terms of Use. Davis and Unbound Medicine. https://medical-dictionary.thefreedictionary.com/opportunistic+infection, invasion and multiplication of microorganisms in body tissues, as in an infectious disease. Opportunistic pyogenic infection infection by pus-producing organisms, most commonly species … home/medterms medical dictionary a-z list / opportunistic infection definition. In these patients the inflammatory response is impaired with masking … The most common immunologic defect associated with … Opportunistic infections occur in people with weakened immune systems. MedicineNet does not provide medical advice, diagnosis or treatment. An infection that is normally mild in a healthy individual, but which takes advantage of an ill person's weakened immune system to move into the body, grow, spread, and cause serious illness. Opportunistic Infections: An infection caused by an organism which becomes pathogenic under certain conditions, e.g., during immunosuppression. The infectious process is similar to a circular chain with each link representing one of the factors involved in the process. Introduction: Opportunistic infection Description of Opportunistic infection. not cause death, but the opportunistic infections that occur because of its An infectious disease occurs only if each link is present and in proper sequence. Each period varies with different pathogens and different diseases. Today, OIs are less common in people with HIV because of effective HIV treatment. They comment that "persons who test late in the course of HIV infection are not able to benefit fully from antiretroviral therapy and pro-phylaxis to prevent, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, centers for disease control and prevention, Progressive Multifocal Leukoencephalopathy, the webmaster's page for free fun content, OCCURRENCE AND OUTCOME OF OPPORTUNISTIC INFECTIONS AMONG HAART EXPERIENCED PATIENTS IN A TERTIARY CARE HOSPITAL OF KOLKATA, A study of epidemiology and clinical profile of tuberculosis in patients living with HIV-Aids, Study of changes in opportunistic infections after one year of antiretroviral therapy in HIV infected patients in a Tertiary Care Centre in North Bengal, Profile and clinical features of HIV positive patients attending Integrated Counselling and Testing Centre in a medical college hospital of Hassan, Karnataka, Inmunocompetencia en adultos: mas que VIH negativo, Prevalence and risk factors for opportunistic infections in HIV patients who developed adverse drug reactions (ADRs) to antiretroviral therapy (ART) in a tertiary-care teaching hospital, HIV-associated lipodystrophy syndrome: an accelerated form of the metabolic syndrome of insulin resistance due to altered fat distribution, Parkinsonism recognized as common HIV complication, PA-457, new kind of antiretroviral: ten-day clinical trial results, Human immune signal sets off bacterial attack, Airborne mold spores can be toxic to human health, About half of U.S. adults have had an HIV test, but testing often occurs late in the course of infection, Opportunistic Age Replacement during Delay Time, Opportunistic Age Replacement during Delay Time Policy, Opportunistic Any-Path Forwarding Expected Number of Transmissions, Opportunistic Cartesian Cosine Approximate Matcher, Opportunistic Software Systems Development, Opportunites Industralization Center West.