Definitions for opportunistic infection
This page provides all possible meanings and translations of the word 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)
Any infection that causes disease and occurs only when the host's immune system is impaired.
An opportunistic infection is an infection caused by pathogens, particularly opportunistic pathogens—those that take advantage of certain situations—such as bacterial, viral, fungal or protozoan infections that usually do not cause disease in a healthy host, one with a healthy immune system. A compromised immune system, however, presents an "opportunity" for the pathogen to infect.
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"opportunistic infection." Definitions.net. STANDS4 LLC, 2014. Web. 30 Jul 2014. <http://www.definitions.net/definition/opportunistic infection>.