Mycobacterium fortuitum, Mycobacterium chelonae, and Mycobacterium abscessus are:
a. responsible for approximately 90% of clinical mycobacterial disease.
b. unable to grow on routine bacteriologic media.
c. gram-negative rods resembling Escheri-chia coli on Gram stain.
d. slow growers requiring a minimum of 14 days to grow.
A
M. fortuitum, M. chelonae, and M. abscessus are responsible for approximately 90% of clinical mycobacterial disease. They have the ability to grow on routine media, are weakly gram-positive rods that resemble diphtheroids on Gram stain, and are observed as visible colonies that appear on solid media in 7 days or less.
You might also like to view...
During which phase(s) of mitosis are chromosomes composed of two sister chromatids?
a. prophase and prometaphase only b. prophase, prometaphase and metaphase c. prophase, prometaphase, metaphase and anaphase d. anaphase and telophase only e. all phases of mitosis
In multicellular species, fungal spores germinate and give rise to filaments called __________. Fill in the blank(s) with the appropriate word(s)
Which statement is true about standard precautions?
A) They are in force only for bloodborne pathogens. B) They apply to all healthcare providers working with all patients. C) They require full face shields, gloves, and barrier gowns for all patient contact situations. D) They are used only when the patient is known to be infected with a BSL-2 or higher pathogen. E) They are used in student labs that only handle BSL-1 pathogens
Blood smears are used in diagnosis ofÂ
A. African sleeping sickness. B. toxoplasmosis. C. malaria. D. African sleeping sickness and malaria. E. toxoplasmosis and malaria.