Common Pathogens and Infections MCQs

By: Prof. Dr. Fazal Rehman | 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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