Podcast
Questions and Answers
Which of the following is a characteristic of Listeria monocytogenes?
Which of the following is a characteristic of Listeria monocytogenes?
- Non-motile at room temperature
- Gram negative spore-forming bacillus
- Gram positive rod or coccobacillus (correct)
- Strict anaerobe
What is the presumptive test for Listeria monocytogenes motility?
What is the presumptive test for Listeria monocytogenes motility?
- Spiral motility on agar plates
- No motility observed on any media
- Umbrella-like or inverted Christmas tree motility on semi-solid media (correct)
- Random and erratic motility on wet mounts
Which of the following is a disease associated with Listeria monocytogenes?
Which of the following is a disease associated with Listeria monocytogenes?
- Gastroenteritis in young adults
- Skin infections in immunocompromised individuals
- Pneumonia in elderly patients
- Neonatal meningitis (correct)
What is the laboratory diagnosis method for Listeria monocytogenes?
What is the laboratory diagnosis method for Listeria monocytogenes?
What is the most common egg-based media for Mycobacterium tuberculosis?
What is the most common egg-based media for Mycobacterium tuberculosis?
Which staining method can identify Mycobacteria up to genus level?
Which staining method can identify Mycobacteria up to genus level?
What does DOTS stand for in the context of Mycobacterium?
What does DOTS stand for in the context of Mycobacterium?
Which type of media provides faster results for Mycobacterium?
Which type of media provides faster results for Mycobacterium?
What is the recommended media for heavily contaminated specimens according to the American Thoracic Society?
What is the recommended media for heavily contaminated specimens according to the American Thoracic Society?
Which staining method uses Auramine rhodamine stain and KMN04 counterstain?
Which staining method uses Auramine rhodamine stain and KMN04 counterstain?
What type of specimens require decontamination and digestion?
What type of specimens require decontamination and digestion?
Which media includes vitamins, glycerol, and malachite green for Mycobacterium?
Which media includes vitamins, glycerol, and malachite green for Mycobacterium?
What is used for liquefying and decontaminating sputum specimens?
What is used for liquefying and decontaminating sputum specimens?
What test aids in the identification of non-TB Mycobacteria?
What test aids in the identification of non-TB Mycobacteria?
Which culture media is recommended for culture of Mycobacterium tuberculosis lasting 6-12 months?
Which culture media is recommended for culture of Mycobacterium tuberculosis lasting 6-12 months?
What staining method is used for easier reading of Mycobacteria?
What staining method is used for easier reading of Mycobacteria?
What is the primary reason for Mycobacterium being acid-fast?
What is the primary reason for Mycobacterium being acid-fast?
Which type of TB is associated with resistance to primary TB drugs and fluoroquinolones?
Which type of TB is associated with resistance to primary TB drugs and fluoroquinolones?
What is the causative agent of leprosy?
What is the causative agent of leprosy?
Which test is used for the diagnosis of M. leprae?
Which test is used for the diagnosis of M. leprae?
How is Mycobacterium bovis transmitted to humans?
How is Mycobacterium bovis transmitted to humans?
Which mycobacterium is associated with human cases of TB in tropical Africa?
Which mycobacterium is associated with human cases of TB in tropical Africa?
What is the primary characteristic of Mycobacterium tuberculosis?
What is the primary characteristic of Mycobacterium tuberculosis?
Which type of leprosy is associated with different immune responses and diagnostic methods?
Which type of leprosy is associated with different immune responses and diagnostic methods?
What is the primary method of transmission for Mycobacterium leprae?
What is the primary method of transmission for Mycobacterium leprae?
Which group does Mycobacterium tuberculosis belong to?
Which group does Mycobacterium tuberculosis belong to?
What are the types of TB mentioned in the text?
What are the types of TB mentioned in the text?
What are the susceptibility tests mentioned for TB diagnosis?
What are the susceptibility tests mentioned for TB diagnosis?
Which Mycobacterium species is known as the 'YELLOW BACILLUS'?
Which Mycobacterium species is known as the 'YELLOW BACILLUS'?
Which Mycobacterium species requires hemin for growth?
Which Mycobacterium species requires hemin for growth?
Which Mycobacterium species is associated with skin infections occurring as red to blue lesions and swimming pool granuloma?
Which Mycobacterium species is associated with skin infections occurring as red to blue lesions and swimming pool granuloma?
Which Mycobacterium species is first isolated from MACACA RHESUS MONKEY?
Which Mycobacterium species is first isolated from MACACA RHESUS MONKEY?
Which Mycobacterium species is known as the 'TAP WATER BACILLUS'?
Which Mycobacterium species is known as the 'TAP WATER BACILLUS'?
Which Mycobacterium species can cause arthritis and osteomyelitis?
Which Mycobacterium species can cause arthritis and osteomyelitis?
Which test is used to detect the production of NITROREDUCTASE in Mycobacterium species?
Which test is used to detect the production of NITROREDUCTASE in Mycobacterium species?
Which biochemical test aids in the identification of non-TB Mycobacteria?
Which biochemical test aids in the identification of non-TB Mycobacteria?
Which Mycobacterium species optimally grows at 42 degC and forms branching colonies with aerial hyphae on cornmeal agar?
Which Mycobacterium species optimally grows at 42 degC and forms branching colonies with aerial hyphae on cornmeal agar?
Which Mycobacterium species is associated with the production of a (+) arylsulfatase?
Which Mycobacterium species is associated with the production of a (+) arylsulfatase?
Which Mycobacterium species is known as the 'BATTEY BACILLUS'?
Which Mycobacterium species is known as the 'BATTEY BACILLUS'?
Which Mycobacterium species is similar to M. simiae but negative for niacin?
Which Mycobacterium species is similar to M. simiae but negative for niacin?
Study Notes
Bacteriology Acid-Fast Bacilli Lecture Summary
- Mycobacterium is acid-fast due to mycolic acid, slow-growing, and requires whole egg for growth
- Three groups of mycobacteria: tuberculosis complex, leprae, and other than tuberculosis
- Mycobacterium tuberculosis is known as Koch’s Bacillus, with "MUCH GRANULES" and obligate aerobe
- Types of TB include primary, secondary, MDR-TB, XDR, Pott’s disease, and granuloma
- Primary TB forms tubercles, caseation lesions, and Ghon complexes; secondary TB is a repeat of previous infection
- MDR-TB shows resistance to primary drugs, while XDR shows resistance to primary TB drugs and fluoroquinolones
- Treatment for TB includes primary and secondary drugs, with susceptibility tests such as serpentine cord formation and Mantoux test
- Mycobacterium bovis causes TB in animals and humans, transmitted through ingestion of contaminated milk or exposure to infected animals
- Mycobacterium canetti grows more rapidly than M. tuberculosis and is associated with human cases of TB in tropical Africa
- Mycobacterium leprae causes leprosy and is non-culturable on artificial media, transmitted through inhalation or contact with infected skin
- Leprosy has two forms: tuberculoid and lepromatous, with different immune responses and diagnostic methods
- Laboratory diagnosis of mycobacteria involves skin tests, lepra cells, and basis of diagnosis, with the Wade Fite Faraco test and phenolase test for M. leprae
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Description
Test your knowledge of bacteriology and acid-fast bacilli with this comprehensive lecture summary quiz. Explore key concepts such as Mycobacterium tuberculosis, types of tuberculosis, drug resistance, treatment, and the causative agent of leprosy. Dive into laboratory diagnosis methods and different strains of mycobacteria.
