Yeasts
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20 Terms
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Yeast
A unicellular fungus that can be found in mucosal membranes of the human body and is important in the food industry.
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Endogenous infection
An infection caused by organisms that normally live in the host's body.
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Exogenous infection
An infection that originates from outside the body.
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Colonization
Organisms are present but not dividing or invading tissues.
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Infection
Organisms are active, dividing, and invading, showing signs of growth like pseudohyphae.
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Pseudohyphae
A form of yeast that resembles hyphae but is characterized by being septated and constricted at points of attachment.
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Germ tube
A slender, tubular outgrowth from a yeast cell that can aid in the identification of certain species like Candida albicans.
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Candidiasis
An infection caused by yeast species, most commonly Candida albicans.
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Invasive candidiasis
A severe form of candidiasis where the fungus invades internal organs.
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Cryptococcus neoformans
An opportunistic fungal pathogen primarily associated with avian excreta, particularly pigeons, that can cause severe infections.
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Biofilm
A cluster of microorganisms attached to a surface and embedded in a self-produced matrix.
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Candida auris
An emerging multidrug-resistant yeast that causes serious infections and spreads easily in healthcare settings.
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Antifungal medication
Drugs used to treat fungal infections, available in various forms like creams or intravenous formulations.
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Nakaseomyces glabrata
A commensal yeast that can cause invasive candidiasis with a mortality rate that can be as high as 20-50%.
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Candida tropicalis
A yeast that can be part of the normal flora but may cause invasive infections with considerable mortality rates.
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Pneumocystis jirovecii
An opportunistic fungal pathogen that causes pneumonia in immunocompromised individuals.
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India ink test
A traditional method to detect encapsulated yeasts like Cryptococcus neoformans.
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Carbohydrate assimilation test
A method to determine a yeast's ability to utilize carbohydrates as a carbon source.
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Germ tube test
A laboratory test used to identify Candida albicans based on the formation of germ tubes.
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MALDI-TOF
A technique used for the rapid identification of microorganisms based on mass spectrometry.
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