Common Pathogens and Infections MCQs

By: Prof. Dr. Fazal Rehman Shamil | Last updated: July 27, 2024

  1. Which pathogen is commonly responsible for causing Tuberculosis (TB)?
    a) Staphylococcus aureus
    b) Mycobacterium tuberculosis
    c) Escherichia coli
    d) Neisseria meningitidisAnswer: b) Mycobacterium tuberculosis
  2. What is the primary causative agent of Lyme disease?
    a) Borrelia burgdorferi
    b) Treponema pallidum
    c) Chlamydia trachomatis
    d) Rickettsia prowazekiiAnswer: a) Borrelia burgdorferi
  3. Which virus is known for causing Chickenpox and Shingles?
    a) Herpes simplex virus
    b) Varicella-zoster virus
    c) Epstein-Barr virus
    d) CytomegalovirusAnswer: b) Varicella-zoster virus
  4. Which bacterium is the main cause of the sexually transmitted infection Gonorrhea?
    a) Neisseria gonorrhoeae
    b) Chlamydia trachomatis
    c) Treponema pallidum
    d) Mycoplasma genitaliumAnswer: a) Neisseria gonorrhoeae
  5. What pathogen is responsible for the majority of urinary tract infections (UTIs)?
    a) Escherichia coli
    b) Proteus mirabilis
    c) Klebsiella pneumoniae
    d) Pseudomonas aeruginosaAnswer: a) Escherichia coli
  6. Which fungus is commonly associated with oral thrush and other candidal infections?
    a) Candida albicans
    b) Aspergillus fumigatus
    c) Cryptococcus neoformans
    d) Histoplasma capsulatumAnswer: a) Candida albicans
  7. What is the most common cause of viral meningitis?
    a) Herpes simplex virus
    b) Enteroviruses
    c) Varicella-zoster virus
    d) CytomegalovirusAnswer: b) Enteroviruses
  8. Which bacterium is known for causing whooping cough?
    a) Bordetella pertussis
    b) Mycobacterium leprae
    c) Haemophilus influenzae
    d) Streptococcus pneumoniaeAnswer: a) Bordetella pertussis
  9. Which virus is primarily responsible for the common cold?
    a) Rhinovirus
    b) Coronavirus
    c) Adenovirus
    d) Respiratory syncytial virus (RSV)Answer: a) Rhinovirus
  10. What is the causative agent of Malaria?
    a) Plasmodium species (e.g., Plasmodium falciparum)
    b) Leptospira interrogans
    c) Trypanosoma brucei
    d) Babesia microtiAnswer: a) Plasmodium species (e.g., Plasmodium falciparum)
  11. Which pathogen is associated with the development of Legionnaires’ disease?
    a) Legionella pneumophila
    b) Pseudomonas aeruginosa
    c) Mycobacterium avium
    d) Francisella tularensisAnswer: a) Legionella pneumophila
  12. What is the common name for the infection caused by the bacterium Clostridium tetani?
    a) Tetanus
    b) Botulism
    c) Gas gangrene
    d) DiphtheriaAnswer: a) Tetanus
  13. Which virus is responsible for causing Human Immunodeficiency Virus (HIV) infection?
    a) Human Immunodeficiency Virus
    b) Human Papillomavirus
    c) Hepatitis B Virus
    d) Hepatitis C VirusAnswer: a) Human Immunodeficiency Virus
  14. Which pathogen causes the disease known as “Fifth Disease”?
    a) Parvovirus B19
    b) Human Herpesvirus 6
    c) Cytomegalovirus
    d) Epstein-Barr VirusAnswer: a) Parvovirus B19
  15. What bacterium is a known cause of peptic ulcers?
    a) Helicobacter pylori
    b) Campylobacter jejuni
    c) Salmonella typhi
    d) Vibrio choleraeAnswer: a) Helicobacter pylori

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